In music, Op. 42 stands for Opus number 42. Compositions that are assigned this number include: Arnold – Homage to the Queen Britten – Saint Nicolas Bruch – Romance in A minor Busoni – Berceuse élégiaque Chopin – Waltz in A-flat major, Op. 42 Elgar – Diarmuid and Grania Glière – Symphony No. 3 Haydn – String Quartet in D Minor, Op. 42 Holst – At the Boar's Head Ippolitov-Ivanov – Caucasian Sketches, Suite No. 2 Mendelssohn – Psalm 42 Nielsen – Fynsk Foraar Rachmaninoff – Variations on a Theme of Corelli Rautavaara – Études Schumann – Frauenliebe und -leben Shostakovich – Five Fragments Tchaikovsky – Souvenir d'un lieu cher Widor – Symphony for Organ No. 5 Widor – Symphony for Organ No. 6

Einojuhani Rautavaara's Symphony No. 2, Op. 8, originally entitled Sinfonia intima, is a symphony for orchestra written in 1957. It marks the composer's departure from his neoclassical first symphony towards atonality.

This is a list of compositions by Einojuhani Rautavaara. Rautavaara stopped using opus numbers for his new compositions during the 1970s. In addition, he revised several of his compositions many years after they were originally composed. Therefore, using opus numbers in connection with his works is not a necessity.

This is a list of compositions by Einojuhani Rautavaara. Rautavaara stopped using opus numbers for his new compositions during the 1970s. In addition, he revised several of his compositions many years after they were originally composed. Therefore, using opus numbers in connection with his works is not a necessity.

This is a list of compositions by Einojuhani Rautavaara. Rautavaara stopped using opus numbers for his new compositions during the 1970s. In addition, he revised several of his compositions many years after they were originally composed. Therefore, using opus numbers in connection with his works is not a necessity.

This is a list of compositions by Einojuhani Rautavaara. Rautavaara stopped using opus numbers for his new compositions during the 1970s. In addition, he revised several of his compositions many years after they were originally composed. Therefore, using opus numbers in connection with his works is not a necessity.

An organ concerto is a type of classical music composition in which a pipe organ soloist is accompanied by an orchestra, although some works exist with the name "concerto" which are for organ alone. The orchestral form first evolved in the 18th century, when composers including Antonio Vivaldi and George Frideric Handel wrote organ concertos with small orchestras; these organ parts rarely if ever call for the organ pedal board. During the Classical period the organ concerto became popular in many places, especially in Bavaria, Austria and Bohemia (whether called there a concerto, pastorella, or sonata), reaching a position of being almost an integral part of the church music tradition of jubilus character. From the Romantic era fewer works are known. Finally, there are some 20th- and 21st-century examples, of which the concerto by Francis Poulenc has entered the basic repertoire, and is quite frequently played. Some works for organ and orchestra which clearly feature the organ in a solo, virtuoso role are not given the name concerto, e.g. the Symphonie concertante of Joseph Jongen. However, the organ concerto form does not include certain orchestral works that call for the pipe organ to be used as an extra orchestral section, such as the Third Symphony of Camille Saint-Saëns, Gustav Holst's The Planets and Richard Strauss's Also sprach Zarathustra. In general, the term organ symphony is reserved for works for solo organ without orchestra, although the nickname "Organ Symphony" for the Saint-Saëns Third Symphony persists, though it is neither a concerto nor a true organ symphony.