'''Ten Preludes''', Op. 23, is a set of ten preludes for solo piano, composed by Sergei Rachmaninoff in 1901 and 1903. This set includes the famous Prelude in G minor.
Together with the Prelude in C-sharp minor, Op. 3/2 and the 13 Preludes, Op. 32, this set is part of a full suite of 24 preludes in all the major and minor keys.