Contents: I, Twelve Preludes * II, Six Little Preludes * III, A Little Fugue in C Minor in Two Voices * IV, Fugue in C Major * V, Fugue in C Major * VI, Fugue in D Minor * VII, Fugue in E Minor * VIII, Fugue in A Minor * IX, Fugue in A Major * X, Prelude and Fughetta in D Minor * XI, Prelude and Fughetta in E Minor * XII, Prelude and Fugue in E-Flat Major * XIII, Prelude and Fugue in A Minor.