The following is a list of choral symphonies.

The Piano Quintet by Alfred Schnittke is a five-movement work for piano and string quartet composed 1972–1976. It was later arranged for symphony orchestra at the request of Gennady Rozhdestvensky and retitled In Memoriam... When Schnittke's mother died in 1972, he decided to compose a work in her memory. Initially he devised a number of ideas, many of which were either later used in his Requiem, which he had been working on concurrently with the Piano Quintet, or were discarded. Progress on the quintet's first movement moved along rapidly, but soon reached an impasse after its completion. He did not resume work on the Piano Quintet until 1975, by which point his music had changed significantly. He completed and premiered it in 1976. Rozhdestvensky later heard a recording of the Piano Quintet, which he felt needed to be transcribed for orchestra in order to fully realize its potential. Schnittke at first responded noncommittally to his suggestion, but eventually agreed to make an orchestral version, which he completed in 1979. The premiere of In Memoriam... followed on December 20, 1979. The Piano Quintet and In Memoriam... are both considered among the pivotal works in Schnittke's career.

This is a list of compositions by composer Alfred Schnittke.

A piano sonata is a sonata written for a solo piano. Piano sonatas are usually written in three or four movements, although some piano sonatas have been written with a single movement (Liszt, Scriabin, Prokofiev, Berg), others with two movements (Haydn, Beethoven), some contain five (Brahms' Third Piano Sonata, Czerny's Piano Sonata No. 1, Godowsky's Piano Sonata) or even more movements. The first movement is generally composed in sonata form.

A piano sonata is a sonata written for a solo piano. Piano sonatas are usually written in three or four movements, although some piano sonatas have been written with a single movement (Liszt, Scriabin, Prokofiev, Berg), others with two movements (Haydn, Beethoven), some contain five (Brahms' Third Piano Sonata, Czerny's Piano Sonata No. 1, Godowsky's Piano Sonata) or even more movements. The first movement is generally composed in sonata form.

A piano sonata is a sonata written for a solo piano. Piano sonatas are usually written in three or four movements, although some piano sonatas have been written with a single movement (Liszt, Scriabin, Prokofiev, Berg), others with two movements (Haydn, Beethoven), some contain five (Brahms' Third Piano Sonata, Czerny's Piano Sonata No. 1, Godowsky's Piano Sonata) or even more movements. The first movement is generally composed in sonata form.

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".

The Concerto for Piano and String Orchestra is a piano concerto composed by Alfred Schnittke in 1979, and premiered in Leningrad that year. The unconventional work is in a single movement with contrasting sections. It is one of Schnittke's most often performed works. It is also known as Schnittke's Piano Concerto.