text: As Rachmaninoff was a skilled pianist, a large portion of his compositional output consists of works for solo piano. They include 24 Preludes traversing all 24 major and minor keys; Prelude in C-sharp minor (Op. 3, ) from Morceaux de fantaisie (Op. 3); ten preludes in Op. 23; and thirteen in Op. 32. Especially difficult are the two sets of Études-Tableaux, Op. 33 and 39, which are very demanding study pictures. Stylistically, Op. 33 hearkens back to the preludes, while Op. 39 shows the influences of Scriabin and Prokofiev. There are also the Six moments musicaux (Op. 16), the Variations on a Theme of Chopin (Op. 22), and the Variations on a Theme of Corelli (Op. 42). He wrote two piano sonatas, both of which are large scale and virtuosic in their technical demands. Rachmaninoff also composed works for two pianos, four hands, including two Suites (the first subtitled Fantasie-Tableaux), a version of the Symphonic Dances (Op. 45), and an arrangement of the C-sharp minor Prelude, as well as a Russian Rhapsody, and he arranged his First Symphony (below) for piano four hands. Both these works were published posthumously.
  Rachmaninoff wrote two major a cappella choral works—the Liturgy of St. John Chrysostom and the All-Night Vigil (also known as the Vespers). It was the fifth movement of All-Night Vigil that Rachmaninoff requested to have sung at his funeral. Other choral works include a choral symphony, The Bells; the cantata Spring; the Three Russian Songs; and an early Concerto for Choir (a cappella).