Thirteen Preludes, Op. 32, is a set of thirteen preludes for solo piano, composed by Sergei Rachmaninoff in 1910. It complements his earlier Prelude in C#m, Op. 3/2, and 10 Preludes, Op. 23, to complete the full set of 24 Preludes in all 24 major and minor keys (a task a number of important composers have set themselves to complete).
