The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The Allegretto for Piano Trio, WoO 39, in B♭ major is a composition for piano trio by Ludwig van Beethoven that was composed in 1812 as a gift for Maximiliane Brentano, the then ten-year-old daughter of his friend Antonie Brentano. Eight years later he also dedicated the Piano Sonata Op. 109 to Maximiliane. The composition was first published in 1830 by F. P. Dunst in Frankfurt, along with the Piano Trio in E♭ major, WoO 38, and the Piano Sonata in C major, WoO 51.

The Symphony No. 3 in E♭ major, Op. 55, titled as the Eroica Symphony, is a symphony in four movements by Ludwig van Beethoven. One of Beethoven's most celebrated works, the Eroica symphony is a large-scale composition that marked the beginning of the composer's innovative "middle period". Composed mainly in 1803–1804, the work broke boundaries in symphonic form, length, harmony, emotional and cultural content. It is widely considered a landmark in the transition between the Classical and the Romantic era. It is also often considered to be the first Romantic symphony. Beethoven first conducted a private performance on 9 June 1804, and later the first public performance on 7 April 1805.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The Piano Sonata No. 2 in B♭ minor, Op. 35, is a piano sonata in four movements by Polish composer Frédéric Chopin. Chopin completed the work while living in George Sand's manor in Nohant, some 250 km (160 mi) south of Paris, a year before it was published in 1840. The first of the composer's three mature sonatas (the others being the Piano Sonata No. 3 in B minor, Op. 58 and the Sonata for Piano and Cello in G minor, Op. 65), the work is considered to be one of the greatest piano sonatas of the literature. The third movement of the Piano Sonata No. 2 is Chopin's famous funeral march (French: Marche funèbre; Polish: Marsz żałobny) which was composed at least two years before the remainder of the work and has remained, by itself, one of Chopin's most popular compositions. The Piano Sonata No. 2 carries allusions and reminiscences of music by J. S. Bach and by Ludwig van Beethoven; Beethoven's Piano Sonata No. 12 also has a funeral march as its third movement. A typical performance of Chopin's second sonata lasts between 21 and 25 minutes, depending on whether the repetition of the first movement's exposition is observed. While the Piano Sonata No. 2 gained instant popularity with the public, critical reception was initially more doubtful. Robert Schumann, among other critics, argued that the work was structurally inferior and that Chopin "could not quite handle sonata form", a criticism that did not withstand time. The work has been recorded by numerous pianists and is regularly programmed in concerts and piano competitions. The Marche funèbre exists in countless arrangements and has been performed at funerals all over the world (including Chopin's own), having become an archetypal evocation of death.

The Cello Sonata No. 3 in A major, Op. 69, is the third of five cello sonatas by Ludwig van Beethoven. He composed it in 1807–08, during his productive middle period. It was first performed in 1809 by cellist Nikolaus Kraft and pianist Dorothea von Ertmann, a student of Beethoven. Published by Breitkopf & Härtel the same year, it was dedicated to Freiherr Ignaz von Gleichenstein, Beethoven's friend and an amateur cellist. The sonata was successful with audiences from the beginning. An early print of the composition titled it "Sonata / per il / Clavicembalo con Violoncello / composta / dal Sig=r / Luigi van Beethoven". Beethoven's two early sonatas were, as usual at the time, virtuoso concert pieces for the piano, with the string instrument playing a supporting role. The third sonata has been described as the first cello sonata to give the two instruments equal importance. A model for later compositions in the genre, it has been performed and recorded often, including versions with period instruments.

The Cello Sonata No. 3 in A major, Op. 69, is the third of five cello sonatas by Ludwig van Beethoven. He composed it in 1807–08, during his productive middle period. It was first performed in 1809 by cellist Nikolaus Kraft and pianist Dorothea von Ertmann, a student of Beethoven. Published by Breitkopf & Härtel the same year, it was dedicated to Freiherr Ignaz von Gleichenstein, Beethoven's friend and an amateur cellist. The sonata was successful with audiences from the beginning. An early print of the composition titled it "Sonata / per il / Clavicembalo con Violoncello / composta / dal Sig=r / Luigi van Beethoven". Beethoven's two early sonatas were, as usual at the time, virtuoso concert pieces for the piano, with the string instrument playing a supporting role. The third sonata has been described as the first cello sonata to give the two instruments equal importance. A model for later compositions in the genre, it has been performed and recorded often, including versions with period instruments.

The Cello Sonata No. 3 in A major, Op. 69, is the third of five cello sonatas by Ludwig van Beethoven. He composed it in 1807–08, during his productive middle period. It was first performed in 1809 by cellist Nikolaus Kraft and pianist Dorothea von Ertmann, a student of Beethoven. Published by Breitkopf & Härtel the same year, it was dedicated to Freiherr Ignaz von Gleichenstein, Beethoven's friend and an amateur cellist. The sonata was successful with audiences from the beginning. An early print of the composition titled it "Sonata / per il / Clavicembalo con Violoncello / composta / dal Sig=r / Luigi van Beethoven". Beethoven's two early sonatas were, as usual at the time, virtuoso concert pieces for the piano, with the string instrument playing a supporting role. The third sonata has been described as the first cello sonata to give the two instruments equal importance. A model for later compositions in the genre, it has been performed and recorded often, including versions with period instruments.

The Cello Sonata No. 3 in A major, Op. 69, is the third of five cello sonatas by Ludwig van Beethoven. He composed it in 1807–08, during his productive middle period. It was first performed in 1809 by cellist Nikolaus Kraft and pianist Dorothea von Ertmann, a student of Beethoven. Published by Breitkopf & Härtel the same year, it was dedicated to Freiherr Ignaz von Gleichenstein, Beethoven's friend and an amateur cellist. The sonata was successful with audiences from the beginning. An early print of the composition titled it "Sonata / per il / Clavicembalo con Violoncello / composta / dal Sig=r / Luigi van Beethoven". Beethoven's two early sonatas were, as usual at the time, virtuoso concert pieces for the piano, with the string instrument playing a supporting role. The third sonata has been described as the first cello sonata to give the two instruments equal importance. A model for later compositions in the genre, it has been performed and recorded often, including versions with period instruments.

The Cello Sonata No. 3 in A major, Op. 69, is the third of five cello sonatas by Ludwig van Beethoven. He composed it in 1807–08, during his productive middle period. It was first performed in 1809 by cellist Nikolaus Kraft and pianist Dorothea von Ertmann, a student of Beethoven. Published by Breitkopf & Härtel the same year, it was dedicated to Freiherr Ignaz von Gleichenstein, Beethoven's friend and an amateur cellist. The sonata was successful with audiences from the beginning. An early print of the composition titled it "Sonata / per il / Clavicembalo con Violoncello / composta / dal Sig=r / Luigi van Beethoven". Beethoven's two early sonatas were, as usual at the time, virtuoso concert pieces for the piano, with the string instrument playing a supporting role. The third sonata has been described as the first cello sonata to give the two instruments equal importance. A model for later compositions in the genre, it has been performed and recorded often, including versions with period instruments.

The Piano Trio in B♭ major, Op. 11, was composed by Ludwig van Beethoven in 1797 and published in Vienna the next year. It is one of a series of early chamber works, many involving woodwind instruments because of their popularity and novelty at the time. The trio is scored for piano, clarinet (or violin), and cello (sometimes replaced by bassoon). The key of B♭ major was probably chosen to facilitate fast passages in the B♭ clarinet, which had not yet benefited from the development of modern key systems (such as the Albert system or Boehm system). Beethoven dedicated this piano trio to Countess Maria Wilhelmine von Thun. The work is also sometimes known by the nickname "Gassenhauer Trio". This arose from its third movement which contains nine variations on a theme from the then popular dramma giocoso L'amor marinaro ossia Il corsaro (15 October 1797, Wiener Hoftheater) by Joseph Weigl. This particular melody, "Pria ch'io l'impegno" ("Before I go to work"), was so popular it could be heard in many of Vienna's lanes ("Gasse" in German). A "Gassenhauer" usually denotes a (normally simple) tune that many people (in the Gassen) have taken up and sing or whistle for themselves, the tune as such having become rather independent from its compositional origins. A rare word in contemporary German, rough modern equivalents of the term include "hit" (success) or "schlager". Other composers who used this melody include Joseph von Eybler, Johann Nepomuk Hummel and Niccolò Paganini. Because of its unique scoring in Beethoven's output, there is some uncertainty as to whether to include it in the ordinal numbering of Beethoven's piano trios. Some assign it "No. 4" between the Op. 1 and Op. 70 sets while others leave the work out of the numbering.

B-flat major is a major scale based on B♭, with pitches B♭, C, D, E♭, F, G, and A. Its key signature has two flats. Its relative minor is G minor and its parallel minor is B-flat minor. The B-flat major scale is: Changes needed for the melodic and harmonic versions of the scale are written in with accidentals as necessary. The B-flat harmonic major and melodic major scales are: Many transposing instruments are pitched in B-flat major, including the clarinet, trumpet, tenor saxophone, and soprano saxophone. As a result, B-flat major is one of the most popular keys for concert band compositions.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The Flute Sonata in B♭ major, Anh. 4 is a composition for flute and keyboard attributed to Ludwig van Beethoven found amongst his papers after his death. It remained unpublished until 1906.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The Grosse Fuge (German: Große Fuge, also known in English as the Great Fugue or Grand Fugue), Op. 133, is a single-movement composition for string quartet by Ludwig van Beethoven. An immense double fugue, it was universally condemned by contemporary music critics. A reviewer writing for the Allgemeine musikalische Zeitung in 1826 described the fugue as "incomprehensible, like Chinese" and "a confusion of Babel". However, critical opinion of the work has risen steadily since the early 20th century and it is now considered among Beethoven's greatest achievements. Igor Stravinsky described it as "an absolutely contemporary piece of music that will be contemporary forever". The Grosse Fuge was originally composed as the final movement of Beethoven's Quartet No. 13 in B♭ major, Op. 130, written in 1825; but Beethoven's publisher was concerned about the dismal commercial prospects of the piece and wanted the composer to replace the fugue with a new finale. Beethoven complied, and the Grosse Fuge was published as a separate work in 1827 as Op. 133. The work was composed when Beethoven was nearly totally deaf, and is considered to be part of his set of late quartets. The Grosse Fuge was first performed in 1826, as the finale of the B♭ quartet, by the Schuppanzigh Quartet. Music analysts and critics have described the Grosse Fuge as "inaccessible", "eccentric", "filled with paradoxes", and "Armageddon". Critic and musicologist Joseph Kerman calls it "the most problematic single work in Beethoven's output and ... doubtless in the entire literature of music", and violinist David Matthews describes it as "fiendishly difficult to play".

Ludwig van Beethoven composed his Sonata for Pianoforte with Horn, Op. 17 in 1800 for the virtuoso horn player Giovanni Punto. It was premiered by Punto and Beethoven himself in Vienna on April 18, 1800. Beethoven was not well known outside of Vienna at the time of this composition, and after a performance of the piece in Pest on May 7, 1800, played by Punto and Beethoven, a Hungarian critic wrote, "Who is this Beethover [sic]? His name is not known to us. Of course, Punto is very well known."

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The Symphony No. 9 in D minor, Op. 125, is a choral symphony, the final complete symphony by Ludwig van Beethoven, composed between 1822 and 1824. It was first performed in Vienna on 7 May 1824. The symphony is regarded by many critics and musicologists as a masterpiece of Western classical music and one of the greatest and most influential musical works in history. One of the best-known works in common practice music, it stands as one of the most frequently performed symphonies in the world. The Ninth was the first example of a major composer scoring vocal parts in a symphony. The final (4th) movement of the symphony, commonly known as the Ode to Joy, features four vocal soloists and a chorus in the parallel key of D major. The text was adapted from the "An die Freude (Ode to Joy)", a poem written by Friedrich Schiller in 1785 and revised in 1803, with additional text written by Beethoven. In the 20th century, an instrumental arrangement of the chorus was adopted by the Council of Europe, and later the European Union, as the Anthem of Europe. In 2001, Beethoven's original, hand-written manuscript of the score, held by the Berlin State Library, was added by UNESCO to its Memory of the World International Register, becoming the first musical score so designated.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

Ludwig van Beethoven's Opus 1 is a set of three piano trios (written for piano, violin, and cello), first performed in 1795 in the house of Prince Lichnowsky, to whom they are dedicated. The trios were published in 1795. Despite the Op. 1 designation, these trios were not Beethoven's first published compositions; this distinction belongs rather to his Dressler Variations for keyboard (WoO 63). Clearly he recognized the Op. 1 compositions as the earliest ones he had produced that were substantial enough (and marketable enough) to fill out a first major publication to introduce his style of writing to the musical public.

The Piano Trio No. 2 in E minor, Op. 67, is a piece for violin, cello and piano by the Russian composer Dmitri Shostakovich, started in late 1943 and completed in August the following year. It was premiered on 14 November 1944. The piece was dedicated to his close friend Ivan Sollertinsky, whose death in February 1944 affected Shostakovich profoundly. The piece consists of four movements, with a complete performance running 25 to 27 minutes. The final movement, the "Dance of Death", is notable for its Jewish themes. Erik Levi wrote: Shostakovich's Trio ... confront[s] the horrors perpetrated by the retreating German army during the last years of the war. In particular, Shostakovich was deeply affected by the stories featured in the Soviet press that SS guards at the death camps of Treblinka and Majdanek had forced Jewish prisoners to dig their own graves and dance upon them. This discovery gave rise to the macabre musical imagery that haunts the Trio’s Finale....

Ludwig van Beethoven's Opus 1 is a set of three piano trios (written for piano, violin, and cello), first performed in 1795 in the house of Prince Lichnowsky, to whom they are dedicated. The trios were published in 1795. Despite the Op. 1 designation, these trios were not Beethoven's first published compositions; this distinction belongs rather to his Dressler Variations for keyboard (WoO 63). Clearly he recognized the Op. 1 compositions as the earliest ones he had produced that were substantial enough (and marketable enough) to fill out a first major publication to introduce his style of writing to the musical public.

The Piano Trio in B♭ major, Op. 11, was composed by Ludwig van Beethoven in 1797 and published in Vienna the next year. It is one of a series of early chamber works, many involving woodwind instruments because of their popularity and novelty at the time. The trio is scored for piano, clarinet (or violin), and cello (sometimes replaced by bassoon). The key of B♭ major was probably chosen to facilitate fast passages in the B♭ clarinet, which had not yet benefited from the development of modern key systems (such as the Albert system or Boehm system). Beethoven dedicated this piano trio to Countess Maria Wilhelmine von Thun. The work is also sometimes known by the nickname "Gassenhauer Trio". This arose from its third movement which contains nine variations on a theme from the then popular dramma giocoso L'amor marinaro ossia Il corsaro (15 October 1797, Wiener Hoftheater) by Joseph Weigl. This particular melody, "Pria ch'io l'impegno" ("Before I go to work"), was so popular it could be heard in many of Vienna's lanes ("Gasse" in German). A "Gassenhauer" usually denotes a (normally simple) tune that many people (in the Gassen) have taken up and sing or whistle for themselves, the tune as such having become rather independent from its compositional origins. A rare word in contemporary German, rough modern equivalents of the term include "hit" (success) or "schlager". Other composers who used this melody include Joseph von Eybler, Johann Nepomuk Hummel and Niccolò Paganini. Because of its unique scoring in Beethoven's output, there is some uncertainty as to whether to include it in the ordinal numbering of Beethoven's piano trios. Some assign it "No. 4" between the Op. 1 and Op. 70 sets while others leave the work out of the numbering.

Op. 70 is a set of two Piano Trios by Ludwig van Beethoven, written for piano, violin, and cello. Both trios were composed during Beethoven's stay at Countess Marie von Erdődy's estate, and both are dedicated to her for her hospitality. They were published in 1809. The first, in D major, known as the Ghost, is one of his best known works in the genre (rivaled only by the Archduke Trio). The D major trio features themes found in the second movement of Beethoven's Symphony No. 2. The All-Music Guide states that "because of its strangely scored and undeniably eerie-sounding slow movement, it was dubbed the 'Ghost' Trio. The name has stuck with the work ever since. The ghostly music may have had its roots in sketches for a Macbeth opera that Beethoven was contemplating at the time." According to Lewis Lockwood, Beethoven's pupil Carl Czerny wrote in 1842 that the slow movement reminded him (Czerny) of the ghost scene at the opening of Shakespeare's Hamlet, and this was the origin of the nickname. James Keller also attributes the nickname to Czerny, adding, "You may discard as erroneous the oft-encountered claim that this movement of the Ghost Trio is a reworking of music Beethoven originally sketched as the Witches Chorus for his Macbeth. These pieces are representative of Beethoven's "Middle" stylistic period, which went from roughly 1803 to 1812, and which included many of his most famous works. Beethoven wrote the two piano trios while spending the summer of 1808 back once again in Heiligenstadt, Vienna, where he had completed his Symphony No. 5 the previous summer. He wrote the two trios immediately after finishing his Sinfonia pastorale, Symphony No. 6. This was a period of uncertainty in Beethoven's life, in particular because he had no dependable source of income at the time. Although these two trios are sometimes numbered as "No. 5" and "No. 6", the numbering of Beethoven's twelve piano trios is not standardized, and in other sources the two Op. 70 trios may be shown as having different numbers, if any.

Op. 70 is a set of two Piano Trios by Ludwig van Beethoven, written for piano, violin, and cello. Both trios were composed during Beethoven's stay at Countess Marie von Erdődy's estate, and both are dedicated to her for her hospitality. They were published in 1809. The first, in D major, known as the Ghost, is one of his best known works in the genre (rivaled only by the Archduke Trio). The D major trio features themes found in the second movement of Beethoven's Symphony No. 2. The All-Music Guide states that "because of its strangely scored and undeniably eerie-sounding slow movement, it was dubbed the 'Ghost' Trio. The name has stuck with the work ever since. The ghostly music may have had its roots in sketches for a Macbeth opera that Beethoven was contemplating at the time." According to Lewis Lockwood, Beethoven's pupil Carl Czerny wrote in 1842 that the slow movement reminded him (Czerny) of the ghost scene at the opening of Shakespeare's Hamlet, and this was the origin of the nickname. James Keller also attributes the nickname to Czerny, adding, "You may discard as erroneous the oft-encountered claim that this movement of the Ghost Trio is a reworking of music Beethoven originally sketched as the Witches Chorus for his Macbeth. These pieces are representative of Beethoven's "Middle" stylistic period, which went from roughly 1803 to 1812, and which included many of his most famous works. Beethoven wrote the two piano trios while spending the summer of 1808 back once again in Heiligenstadt, Vienna, where he had completed his Symphony No. 5 the previous summer. He wrote the two trios immediately after finishing his Sinfonia pastorale, Symphony No. 6. This was a period of uncertainty in Beethoven's life, in particular because he had no dependable source of income at the time. Although these two trios are sometimes numbered as "No. 5" and "No. 6", the numbering of Beethoven's twelve piano trios is not standardized, and in other sources the two Op. 70 trios may be shown as having different numbers, if any.

The Piano Trio in B♭ major, Op. 97, by Ludwig van Beethoven is a piano trio completed in 1811. It is commonly referred to as the Archduke Trio, because it was dedicated to Archduke Rudolph of Austria, the youngest of twelve children of Leopold II, Holy Roman Emperor. Rudolf was an amateur pianist and a patron, friend, and composition student of Beethoven. Beethoven dedicated about a dozen compositions to him. The Archduke Trio was written late in Beethoven's so-called "middle period". He sketched out the draft for it in the summer of 1810 and completed the composition in March 1811. It follows the traditional four movement structure with sonata form in the first and rondo sonata form in the last movement. It also allows for a more prominent part for the piano than previous compositions.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The Well-Tempered Clavier, BWV 846–893, consists of two sets of preludes and fugues in all 24 major and minor keys for keyboard by Johann Sebastian Bach. In the composer's time clavier referred to a variety of keyboard instruments, namely the harpsichord, the clavichord and the organ (which operates using air instead of strings), but not excluding the regal and the then newly-invented pianoforte. The modern German spelling for the collection is Das wohltemperierte Klavier (WTK; German pronunciation: [das ˌvoːlˌtɛmpəˈʁiːɐ̯tə klaˈviːɐ̯]). Bach gave the title Das Wohltemperirte Clavier to a book of preludes and fugues in all 24 keys, major and minor, dated 1722, composed "for the profit and use of musical youth desirous of learning, and especially for the pastime of those already skilled in this study". 20 years later, Bach compiled a second book of the same kind (24 pairs of preludes and fugues), which became known as The Well-Tempered Clavier, Part Two (in German: Zweyter Theil, modern spelling: Zweiter Teil). Modern editions usually refer to both parts as The Well-Tempered Clavier, Book 1 (WTC 1) and The Well-Tempered Clavier, Book 2 (WTC 2), respectively. The collection is generally regarded as one of the most important works in the history of classical music.

In classical music, a piano quintet is a work of chamber music written for piano and four other instruments, most commonly (since 1842) a string quartet (i.e., two violins, viola, and cello). The term also refers to the group of musicians that plays a piano quintet. The genre flourished during the nineteenth century. Until the middle of the nineteenth century, most piano quintets were scored for piano, violin, viola, cello, and double bass. Following the success of Robert Schumann's Piano Quintet in E♭ major, Op. 44 in 1842, which paired the piano with a string quartet, composers increasingly adopted Schumann's instrumentation, and it was this form of the piano quintet that dominated during the second half of the nineteenth century and into the twentieth century. Among the best known and most frequently performed piano quintets, aside from Schumann's, are Schubert's Trout quintet and the piano quintets of Johannes Brahms, César Franck, Antonín Dvořák and Dmitri Shostakovich.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The Septet in E♭ major for clarinet, horn, bassoon, violin, viola, cello, and double bass, Op. 20, by Ludwig van Beethoven, was sketched out in 1799, completed, and first performed in Vienna in 1800 and published in 1802. The score contains the notation: "Der Kaiserin Maria Theresia gewidmet" (Dedicated to the Empress Maria Theresa). It was one of Beethoven’s most popular works during his lifetime, much to the composer's dismay. Several years later, Beethoven even wished the score to have been destroyed, saying: "That damn work! I wish it were burned!" The concert was extremely popular in Paris where it was played for decades, often more than once a year by the Orchestre de la Société des Concerts du Conservatoire. At the auction of Beethoven's possessions after his death, the manuscript for his Missa solemnis fetched 7 florins, but the Septet was sold for 18 florins.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

E-flat major is a major scale based on E♭, consisting of the pitches E♭, F, G, A♭, B♭, C, and D. Its key signature has three flats. Its relative minor is C minor, and its parallel minor is E♭ minor, (or enharmonically D♯ minor). The E♭ major scale is: The E-flat harmonic major and melodic major scales are

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The String Quartet No. 1 in F major, Op. 18, No. 1, was written by Ludwig van Beethoven between 1798 and 1800, published in 1801. The complete set of six quartets was commissioned by and dedicated to the Bohemian aristocrat Joseph Franz von Lobkowitz. It is actually the second string quartet that Beethoven composed, following his third.

Ludwig van Beethoven's String Quartet No. 10 in E♭ major, Op. 74, was written in 1809 and is nicknamed the "Harp" quartet. The nickname "Harp" refers to the characteristic pizzicato sections in the allegro of the first movement, where pairs of members of the quartet alternate notes in an arpeggio, reminiscent of the plucking of a harp. Like many nicknames for Beethoven's works, this was created by the publisher. It is also speculated that the nickname might have sparked from an arrangement for harp of the first movement, circulating in the form of a now lost manuscript written by an anonymous arranger.

Ludwig van Beethoven's String Quartet No. 11 in F minor, Op. 95, from 1810, was his last before his late string quartets. It is commonly referred to as the "Serioso," stemming from his title "Quartett[o] Serioso" at the beginning and the tempo designation for the third movement. It is one of the shortest and most compact of all the Beethoven quartets, and shares a tonality (F) with the first and last quartets Beethoven published (Op. 18, no. 1, and Op. 135). In character and key, as well as in the presence of a final frenetic section in the parallel major, it is related to another composition of Beethoven's middle period — the overture to his incidental music for Goethe's drama Egmont, which he was composing in the same year he was working on this quartet. The autograph manuscript for this quartet is inscribed "October 1810", but the paper on which it appears does not match the variety Beethoven is known to have used at that time. It is more likely that he finished it several months later. It premiered in 1814 and appeared in print two years later, dedicated to Nikolaus Zmeskall. Beethoven stated in a letter to George Smart that "The Quartet [Op. 95] is written for a small circle of connoisseurs and is never to be performed in public." Upon listening to the piece, it becomes apparent why he made that assertion. This piece would have been quite out of character in 1810: it is an experiment on compositional techniques the composer would draw on later in his life. (Techniques such as shorter developments, interesting use of silences, metric ambiguity, seemingly unrelated outbursts and more freedom with tonality in his sonata form.) The historical picture of this time period helps to put the piece in context. Napoleon had invaded Vienna in May 1809 (see Battle of Wagram) for the second time in four years, and this upset Beethoven greatly. All of his aristocratic friends had fled Vienna, but Beethoven stayed and dramatically complained about the loud bombings.

Ludwig van Beethoven completed his String Quartet No. 12 in E♭ major, Op. 127, in 1825. It is the first of his late quartets. Commissioned by Nicolas Galitzin over a year earlier, the work was not ready when it was scheduled to premiere. When it was finally premiered by the Schuppanzigh Quartet, it was not well received. Only with subsequent performances by the Bohm Quartet and the Mayseder Quartet did it begin to gain public appreciation.

The String Quartet No. 13 in B♭ major, Op. 130, by Ludwig van Beethoven was completed (in its final form) in November 1826. The number traditionally assigned to it is based on the order of its publication; it is actually Beethoven's 14th quartet in order of composition. It was premiered (in its original form) in March 1826 by the Schuppanzigh Quartet and dedicated to Nikolai Galitzin on its publication in 1827.

The String Quartet No. 14 in C♯ minor, Op. 131, was completed by Ludwig van Beethoven in 1826. It is the last-composed of a trio of string quartets, written in the order Opp. 132, 130 (with the Große Fuge ending), 131. It was Beethoven's favourite of the late quartets: he is quoted as remarking to a friend that he would find "a new manner of part-writing and, thank God, less lack of imagination than before". It is said that upon listening to a performance of this quartet Schubert remarked, "After this, what is left for us to write?" Schumann said that this quartet and Op. 127 had a "grandeur ... which no words can express. They seem to me to stand ... on the extreme boundary of all that has hitherto been attained by human art and imagination." This work is dedicated to Baron Joseph von Stutterheim as a gesture of gratitude for taking Beethoven's nephew Karl into the army after a suicide attempt. Beethoven died before the work's publication by Schott Music and before its first performance, the date of which is uncertain.

The String Quartet No. 15 in A minor, Op. 132, by Ludwig van Beethoven, was written in 1825, given its public premiere on November 6 of that year by the Schuppanzigh Quartet and was dedicated to Count Nikolai Galitzin, as were Opp. 127 and 130. The number traditionally assigned to it is based on the order of its publication; it is actually the thirteenth quartet in order of composition.

The String Quartet No. 16 in F major, Op. 135, by Ludwig van Beethoven was written in October 1826 and was the last major work he completed. Only the final movement of the Quartet Op. 130, written as a replacement for the Große Fuge, was composed later. Beethoven dedicated the composition to his patron and admirer, Johann Nepomuk Wolfmayer. The Schuppanzigh Quartet premiered the work on 23 March 1828, one year after Beethoven's death. The Op. 135 quartet is the shortest of Beethoven's late quartets. Under the introductory slow chords in the last movement, which is headed Der schwer gefaßte Entschluß (The difficult decision), Beethoven wrote in the manuscript Muß es sein? (Must it be?) to which he responds, with the faster main theme of the movement, Es muß sein! (It must be!). It is in four movements: The autograph manuscript of the first movement of the work is preserved in the Beethoven House. The performance of the work takes around 22–25 minutes. The work features in Czech author Milan Kundera's The Unbearable Lightness of Being, where the character Tomas uses the phrases Muß es sein? and Es muß sein! to describe his approach to fate.

Ludwig van Beethoven's Op. 18, published in 1801 by T. Mollo et Comp in Vienna in two books of three quartets each, comprised his first six string quartets. They were composed between 1798 and 1800 to fulfill a commission for Prince Joseph Franz Maximilian Lobkowitz, who was the employer of Beethoven's friend, the violinist Karl Amenda. They are thought to demonstrate his total mastery of the classical string quartet as developed by Joseph Haydn and Wolfgang Amadeus Mozart. The order of publication (numbering within the opus) does not correspond to the order of composition. Beethoven composed these quartets in the sequence 3, 1, 2, 5, 4, 6. See: String Quartet No. 1 in F major String Quartet No. 2 in G major String Quartet No. 3 in D major String Quartet No. 4 in C minor String Quartet No. 5 in A major String Quartet No. 6 in B♭ major In an April 1802 letter to Hofmeister in Leipzig, Beethoven says the Mollo edition of nos. 4-6 is error-ridden ("has again, let us say, filled with faults and errata, great and small"), and Kerman makes a similar comment, leaving one to conclude that the poor Mollo edition of nos. 4-6, which incited private protests from the composer, may also be the best existing primary source for those three works, unless manuscripts or sketches for them have been discovered. This applies to nos. 4-6; the situation for no. 1, especially, is different, since an entire earlier version has been preserved, published and even recorded. While the overall set is less critically acclaimed than the "Razumovsky" quartets and the late quartets, op. 18, no. 1 has been perennially admired. It is noted for its unity, with 131 iterations of the opening motive in its 427 measures (by A. B. Marx's count).

The String Quartet No. 1 in F major, Op. 18, No. 1, was written by Ludwig van Beethoven between 1798 and 1800, published in 1801. The complete set of six quartets was commissioned by and dedicated to the Bohemian aristocrat Joseph Franz von Lobkowitz. It is actually the second string quartet that Beethoven composed, following his third.

Ludwig van Beethoven composed his String Quartet No. 4 in C minor, Op. 18, No. 4, between 1798 and 1800 in Vienna and published in 1801. The Op. 18 collection is dedicated to Joseph Franz von Lobkowitz.

Ludwig van Beethoven's Op. 18, published in 1801 by T. Mollo et Comp in Vienna in two books of three quartets each, comprised his first six string quartets. They were composed between 1798 and 1800 to fulfill a commission for Prince Joseph Franz Maximilian Lobkowitz, who was the employer of Beethoven's friend, the violinist Karl Amenda. They are thought to demonstrate his total mastery of the classical string quartet as developed by Joseph Haydn and Wolfgang Amadeus Mozart. The order of publication (numbering within the opus) does not correspond to the order of composition. Beethoven composed these quartets in the sequence 3, 1, 2, 5, 4, 6. See: String Quartet No. 1 in F major String Quartet No. 2 in G major String Quartet No. 3 in D major String Quartet No. 4 in C minor String Quartet No. 5 in A major String Quartet No. 6 in B♭ major In an April 1802 letter to Hofmeister in Leipzig, Beethoven says the Mollo edition of nos. 4-6 is error-ridden ("has again, let us say, filled with faults and errata, great and small"), and Kerman makes a similar comment, leaving one to conclude that the poor Mollo edition of nos. 4-6, which incited private protests from the composer, may also be the best existing primary source for those three works, unless manuscripts or sketches for them have been discovered. This applies to nos. 4-6; the situation for no. 1, especially, is different, since an entire earlier version has been preserved, published and even recorded. While the overall set is less critically acclaimed than the "Razumovsky" quartets and the late quartets, op. 18, no. 1 has been perennially admired. It is noted for its unity, with 131 iterations of the opening motive in its 427 measures (by A. B. Marx's count).

Ludwig van Beethoven's String Quartet No. 10 in E♭ major, Op. 74, was written in 1809 and is nicknamed the "Harp" quartet. The nickname "Harp" refers to the characteristic pizzicato sections in the allegro of the first movement, where pairs of members of the quartet alternate notes in an arpeggio, reminiscent of the plucking of a harp. Like many nicknames for Beethoven's works, this was created by the publisher. It is also speculated that the nickname might have sparked from an arrangement for harp of the first movement, circulating in the form of a now lost manuscript written by an anonymous arranger.

The three Razumovsky (or Rasumovsky) string quartets, opus 59, are a set of string quartets by Ludwig van Beethoven. He wrote them in 1806, as a result of a commission by the Russian ambassador in Vienna, Count Andreas Razumovsky: String Quartet No. 7 in F major, Op. 59, No. 1 String Quartet No. 8 in E minor, Op. 59, No. 2 String Quartet No. 9 in C major, Op. 59, No. 3 They are the first three of what are usually known as the "Middle Period" string quartets, or simply the "Middle Quartets." The other two are opus 74 and opus 95. Many quartets record all five as a set. Beethoven uses a characteristically Russian theme in the first two quartets in honour of the prince who gave him the commission: In Op. 59 No. 1, the "Thème russe" (as the score is marked) is the principal theme of the last movement. In Op. 59 No. 2, the Thème russe is in the B section of the third movement. This theme is based on a Russian folk song which was also utilised by Modest Mussorgsky in the coronation scene of his opera Boris Godunov, by Pyotr Tchaikovsky in the introduction to act III of his opera Mazeppa, by Sergei Rachmaninoff in the sixth movement of his 6 Morceaux for Piano Duet, Op.11 "Glory" ("Slava"), and by Igor Stravinsky in his ballet The Firebird. In the quartet Op. 59 No. 3, there is no Thème russe explicitly named in the score, but a secondary theme in the second movement has a passing resemblance to a traditional Russian song, which may well account for the Russian flavour noted by a number of writers, including Lewis Lockwood. All three quartets were published as a set in 1808 in Vienna.

The three Razumovsky (or Rasumovsky) string quartets, opus 59, are a set of string quartets by Ludwig van Beethoven. He wrote them in 1806, as a result of a commission by the Russian ambassador in Vienna, Count Andreas Razumovsky: String Quartet No. 7 in F major, Op. 59, No. 1 String Quartet No. 8 in E minor, Op. 59, No. 2 String Quartet No. 9 in C major, Op. 59, No. 3 They are the first three of what are usually known as the "Middle Period" string quartets, or simply the "Middle Quartets." The other two are opus 74 and opus 95. Many quartets record all five as a set. Beethoven uses a characteristically Russian theme in the first two quartets in honour of the prince who gave him the commission: In Op. 59 No. 1, the "Thème russe" (as the score is marked) is the principal theme of the last movement. In Op. 59 No. 2, the Thème russe is in the B section of the third movement. This theme is based on a Russian folk song which was also utilised by Modest Mussorgsky in the coronation scene of his opera Boris Godunov, by Pyotr Tchaikovsky in the introduction to act III of his opera Mazeppa, by Sergei Rachmaninoff in the sixth movement of his 6 Morceaux for Piano Duet, Op.11 "Glory" ("Slava"), and by Igor Stravinsky in his ballet The Firebird. In the quartet Op. 59 No. 3, there is no Thème russe explicitly named in the score, but a secondary theme in the second movement has a passing resemblance to a traditional Russian song, which may well account for the Russian flavour noted by a number of writers, including Lewis Lockwood. All three quartets were published as a set in 1808 in Vienna.

The three Razumovsky (or Rasumovsky) string quartets, opus 59, are a set of string quartets by Ludwig van Beethoven. He wrote them in 1806, as a result of a commission by the Russian ambassador in Vienna, Count Andreas Razumovsky: String Quartet No. 7 in F major, Op. 59, No. 1 String Quartet No. 8 in E minor, Op. 59, No. 2 String Quartet No. 9 in C major, Op. 59, No. 3 They are the first three of what are usually known as the "Middle Period" string quartets, or simply the "Middle Quartets." The other two are opus 74 and opus 95. Many quartets record all five as a set. Beethoven uses a characteristically Russian theme in the first two quartets in honour of the prince who gave him the commission: In Op. 59 No. 1, the "Thème russe" (as the score is marked) is the principal theme of the last movement. In Op. 59 No. 2, the Thème russe is in the B section of the third movement. This theme is based on a Russian folk song which was also utilised by Modest Mussorgsky in the coronation scene of his opera Boris Godunov, by Pyotr Tchaikovsky in the introduction to act III of his opera Mazeppa, by Sergei Rachmaninoff in the sixth movement of his 6 Morceaux for Piano Duet, Op.11 "Glory" ("Slava"), and by Igor Stravinsky in his ballet The Firebird. In the quartet Op. 59 No. 3, there is no Thème russe explicitly named in the score, but a secondary theme in the second movement has a passing resemblance to a traditional Russian song, which may well account for the Russian flavour noted by a number of writers, including Lewis Lockwood. All three quartets were published as a set in 1808 in Vienna.

The String Quintet in C minor, Op.104 was written by Ludwig van Beethoven in 1817, performed on 10 December 1818, and published in 1819. It is an arrangement of the early C minor Piano Trio, Op. 1 No. 3, which was originally written in 1793. It is scored for a string quintet with two violas. The work is referenced in Vikram Seth's 1999 novel An Equal Music.

The String Quintet in E♭ major, Op. 4, was composed by Ludwig van Beethoven in 1795. It was adapted from his Octet, Op. 103, which, despite its high opus number, was in fact composed by Beethoven in 1792/1793 but was published only in 1837, ten years after the composer's death. The Quintet was published in Vienna in 1796.

The String Quintet in E♭ major, Op. 4, was composed by Ludwig van Beethoven in 1795. It was adapted from his Octet, Op. 103, which, despite its high opus number, was in fact composed by Beethoven in 1792/1793 but was published only in 1837, ten years after the composer's death. The Quintet was published in Vienna in 1796.

Ludwig van Beethoven's Opus 1 is a set of three piano trios (written for piano, violin, and cello), first performed in 1795 in the house of Prince Lichnowsky, to whom they are dedicated. The trios were published in 1795. Despite the Op. 1 designation, these trios were not Beethoven's first published compositions; this distinction belongs rather to his Dressler Variations for keyboard (WoO 63). Clearly he recognized the Op. 1 compositions as the earliest ones he had produced that were substantial enough (and marketable enough) to fill out a first major publication to introduce his style of writing to the musical public.

The String Quartet No. 1 in F major, Op. 18, No. 1, was written by Ludwig van Beethoven between 1798 and 1800, published in 1801. The complete set of six quartets was commissioned by and dedicated to the Bohemian aristocrat Joseph Franz von Lobkowitz. It is actually the second string quartet that Beethoven composed, following his third.

The String Quartet No. 1 in F major, Op. 18, No. 1, was written by Ludwig van Beethoven between 1798 and 1800, published in 1801. The complete set of six quartets was commissioned by and dedicated to the Bohemian aristocrat Joseph Franz von Lobkowitz. It is actually the second string quartet that Beethoven composed, following his third.

The three String Trios, Op. 9 were composed by Ludwig van Beethoven in 1797–98. He published them in Vienna in 1799, with a dedication to his patron Count Johann Georg von Browne (1767–1827). They were first performed by the violinist Ignaz Schuppanzigh with two colleagues from his string quartet. According to the violinist and conductor Angus Watson, these were probably Franz Weiss on viola and either Nikolaus Kraft or his father Anton on cello. Each of the trios consists of four movements: String Trio No. 3 in G major, Op. 9 No. 1 String Trio No. 4 in D major, Op. 9 No. 2 String Trio No. 5 in C minor, Op. 9 No. 3

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The Variations and Fugue on a Theme by Handel, Op. 24, is a work for solo piano written by Johannes Brahms in 1861. It consists of a set of twenty-five variations and a concluding fugue, all based on a theme from George Frideric Handel's Harpsichord Suite No. 1 in B♭ major, HWV 434. They are known as his Handel Variations. The music writer Donald Tovey has ranked it among "the half-dozen greatest sets of variations ever written". Biographer Jan Swafford describes the Handel Variations as "perhaps the finest set of piano variations since Beethoven", adding, "Besides a masterful unfolding of ideas concluding with an exuberant fugue with a finish designed to bring down the house, the work is quintessentially Brahms in other ways: the filler of traditional forms with fresh energy and imagination; the historical eclectic able to start off with a gallant little tune of Handel's, Baroque ornaments and all, and integrate it seamlessly into his own voice, in a work of massive scope and dazzling variety." The autograph manuscript of the work is preserved in the Library of Congress.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The Symphony No. 3 in E♭ major, Op. 55, titled as the Eroica Symphony, is a symphony in four movements by Ludwig van Beethoven. One of Beethoven's most celebrated works, the Eroica symphony is a large-scale composition that marked the beginning of the composer's innovative "middle period". Composed mainly in 1803–1804, the work broke boundaries in symphonic form, length, harmony, emotional and cultural content. It is widely considered a landmark in the transition between the Classical and the Romantic era. It is also often considered to be the first Romantic symphony. Beethoven first conducted a private performance on 9 June 1804, and later the first public performance on 7 April 1805.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

"Là ci darem la mano" (Italian for "There we will give each other our hands") is a duet for the characters Don Giovanni (baritone) and Zerlina (soprano) in Mozart's 1787 opera Don Giovanni (act 1, scene 9).

The cavatina "Se vuol ballare" is an aria for Figaro from the first act of the opera The Marriage of Figaro by Wolfgang Amadeus Mozart. The libretto was written by Lorenzo Da Ponte based on a stage comedy by Pierre Beaumarchais, La folle journée, ou le Mariage de Figaro (1778). The Italian title means "If you want to dance". Figaro's voice type is given as bass in the score, but in modern performance practice is sung by a bass-baritone. Susanna has told her fiancé Figaro that the count intends to exercise his newly reasserted feudal Droit du seigneur, the ius primae noctis, to sleep with her before their marriage. Figaro sings of how he will unravel the count's schemes and thwart him.

The Piano Sonata No. 14 in C♯ minor, marked Quasi una fantasia, Op. 27, No. 2, is a piano sonata by Ludwig van Beethoven, completed in 1801 and dedicated in 1802 to his pupil Countess Julie "Giulietta" Guicciardi. Although known throughout the world as the Moonlight Sonata (German: Mondscheinsonate), it was not Beethoven who named it so. The title "Moonlight Sonata'" was proposed in 1832, after the composer’s death, by the poet Ludwig Rellstab. The piece is one of Beethoven's most famous compositions for the piano, and was quite popular even in his own day. Beethoven wrote the Moonlight Sonata around the age of 30, after he had finished with some commissioned work; there is no evidence that he was commissioned to write this sonata.

Ludwig van Beethoven composed the following violin sonatas between 1797 and 1812. Violin Sonata in A major (Beethoven), Hess 46 (fragmentary) Violin Sonata No. 1 in D, Op. 12, No. 1 Violin Sonata No. 2 in A, Op. 12, No. 2 Violin Sonata No. 3 in E-flat, Op. 12, No. 3 Violin Sonata No. 4 in A minor, Op. 23 Violin Sonata No. 5 in F, Op. 24 ("Spring") Violin Sonata No. 6 in A, Op. 30, No. 1 Violin Sonata No. 7 in C minor, Op. 30, No. 2 Violin Sonata No. 8 in G, Op. 30, No. 3 Violin Sonata No. 9 in A, Op. 47 ("Kreutzer") Violin Sonata No. 10 in G, Op. 96

The Piano Sonata No. 14 in C♯ minor, marked Quasi una fantasia, Op. 27, No. 2, is a piano sonata by Ludwig van Beethoven, completed in 1801 and dedicated in 1802 to his pupil Countess Julie "Giulietta" Guicciardi. Although known throughout the world as the Moonlight Sonata (German: Mondscheinsonate), it was not Beethoven who named it so. The title "Moonlight Sonata'" was proposed in 1832, after the composer’s death, by the poet Ludwig Rellstab. The piece is one of Beethoven's most famous compositions for the piano, and was quite popular even in his own day. Beethoven wrote the Moonlight Sonata around the age of 30, after he had finished with some commissioned work; there is no evidence that he was commissioned to write this sonata.

The Symphony No. 3 in E♭ major, Op. 55, titled as the Eroica Symphony, is a symphony in four movements by Ludwig van Beethoven. One of Beethoven's most celebrated works, the Eroica symphony is a large-scale composition that marked the beginning of the composer's innovative "middle period". Composed mainly in 1803–1804, the work broke boundaries in symphonic form, length, harmony, emotional and cultural content. It is widely considered a landmark in the transition between the Classical and the Romantic era. It is also often considered to be the first Romantic symphony. Beethoven first conducted a private performance on 9 June 1804, and later the first public performance on 7 April 1805.

Ludwig van Beethoven's Piano Sonata No. 23 in F minor, Op. 57 (colloquially known as the Appassionata, meaning "passionate" in Italian) is among the three famous piano sonatas of his middle period (the others being the Waldstein, Op. 53 and Les Adieux, Op. 81a); it was composed during 1804 and 1805, and perhaps 1806, and Beethoven dedicated it to cellist and his friend, Count Franz Brunswick. The first edition was published in February 1807 in Vienna. Unlike the early Sonata No. 8, Pathétique, the Appassionata was not named during the composer's lifetime, but was so labelled in 1838 by the publisher of a four-hand arrangement of the work. Instead, Beethoven's autograph manuscript of the sonata has "La Pasionata" written on the cover, in Beethoven's hand. One of his greatest and most technically challenging piano sonatas, the Appassionata was considered by Beethoven to be his most tempestuous piano sonata until the twenty-ninth piano sonata (known as the Hammerklavier). 1803 was the year Beethoven came to grips with the irreversibility of his progressive hearing loss. An average performance of the entire Appassionata sonata lasts about twenty-five to twenty-seven minutes.

The Violin Sonata No. 5 in F major, Op. 24, is a four movement work for violin and piano by Ludwig van Beethoven. It was first published in 1801. The work is commonly known as the Spring Sonata (Frühlingssonate), although the name "Spring" was apparently given to it after Beethoven's death. The sonata was dedicated to Count Moritz von Fries, a patron to whom Beethoven also dedicated two other works of the same year—the String Quintet in C major, Op. 29 and the Violin Sonata No. 4—as well as his later Symphony No. 7 in A major. The autograph manuscript of the sonata is preserved in the Austrian National Library.

The Violin Sonata No. 9 in A major, Op. 47, by Ludwig van Beethoven, is an 1803 sonata for piano and violin notable for its technical difficulty, unusual length (around 40 minutes), and emotional scope. It is commonly known as the Kreutzer Sonata (Kreutzer-Sonate) after the violinist Rodolphe Kreutzer, to whom it was ultimately dedicated, but who thoroughly disliked the piece and refused to play it.

The Piano Sonata No. 14 in C♯ minor, marked Quasi una fantasia, Op. 27, No. 2, is a piano sonata by Ludwig van Beethoven, completed in 1801 and dedicated in 1802 to his pupil Countess Julie "Giulietta" Guicciardi. Although known throughout the world as the Moonlight Sonata (German: Mondscheinsonate), it was not Beethoven who named it so. The title "Moonlight Sonata'" was proposed in 1832, after the composer’s death, by the poet Ludwig Rellstab. The piece is one of Beethoven's most famous compositions for the piano, and was quite popular even in his own day. Beethoven wrote the Moonlight Sonata around the age of 30, after he had finished with some commissioned work; there is no evidence that he was commissioned to write this sonata.

The Cello Sonata No. 3 in A major, Op. 69, is the third of five cello sonatas by Ludwig van Beethoven. He composed it in 1807–08, during his productive middle period. It was first performed in 1809 by cellist Nikolaus Kraft and pianist Dorothea von Ertmann, a student of Beethoven. Published by Breitkopf & Härtel the same year, it was dedicated to Freiherr Ignaz von Gleichenstein, Beethoven's friend and an amateur cellist. The sonata was successful with audiences from the beginning. An early print of the composition titled it "Sonata / per il / Clavicembalo con Violoncello / composta / dal Sig=r / Luigi van Beethoven". Beethoven's two early sonatas were, as usual at the time, virtuoso concert pieces for the piano, with the string instrument playing a supporting role. The third sonata has been described as the first cello sonata to give the two instruments equal importance. A model for later compositions in the genre, it has been performed and recorded often, including versions with period instruments.

The Violin Sonata No. 9 in A major, Op. 47, by Ludwig van Beethoven, is an 1803 sonata for piano and violin notable for its technical difficulty, unusual length (around 40 minutes), and emotional scope. It is commonly known as the Kreutzer Sonata (Kreutzer-Sonate) after the violinist Rodolphe Kreutzer, to whom it was ultimately dedicated, but who thoroughly disliked the piece and refused to play it.

E-flat major is a major scale based on E♭, consisting of the pitches E♭, F, G, A♭, B♭, C, and D. Its key signature has three flats. Its relative minor is C minor, and its parallel minor is E♭ minor, (or enharmonically D♯ minor). The E♭ major scale is: The E-flat harmonic major and melodic major scales are

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.

The list of compositions of Ludwig van Beethoven consists of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only eleven years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and opera. His compositions range from solo works to those requiring a large orchestra and chorus. Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn, such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers, such as Hector Berlioz and Franz Liszt, with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where he composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the Eroica Symphony, the Fifth Symphony, the Appassionata Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output greatly diminished in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the Diabelli Variations, the Missa Solemnis and the Ninth Symphony. Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or published without opus numbers have been assigned one of "WoO" (Werke ohne Opuszahl—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise" is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the Kreutzer Violin Sonata, or the Archduke Piano Trio. Works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.