Prelude and fugue No. 1 in C major -- Prelude and fugue No. 2 in C minor -- Prelude and fugue No. 3 in C-sharp major -- Prelude and fugue No. 4 in C-sharp minor -- Prelude and fugue No. 5 in D major -- Prelude and fugue No. 6 in D minor -- Prelude and fugue No. 7 in E-flat major -- Prelude and fugue No. 8 in E-flat minor -- Prelude and fugue No. 9 a 3 voci in E major -- Prelude and fugue No. 10 a 2 voci in E minor -- Prelude and fugue No. 11 a 3 voci in F major -- Prelude and fugue No. 12 a 4 voci in F minor -- Prelude and fugue No. 13 a 3 voci in F-sharp major -- Prelude and fugue No. 14 a 4 voci in F-sharp minor -- Prelude and fugue No. 15 a 3 voci in G major -- Prelude and fugue No. 16 a 4 voci in G minor -- Prelude and fugue No. 17 a 4 voci in A-flat major -- Prelude and fugue No. 18 a 4 voci in F-sharp minor -- Prelude and fugue No. 19 a 3 voci in A major -- Prelude and fugue No. 20 a 4 voci in A minor -- Prelude and fugue No. 21 a 3 voci in B-flat major -- Prelude and fugue No. 22 a 5 voci in B-flat minor -- Prelude and fugue No. 23 a 4 voci in B major -- Prelude and fugue No. 24 a 4 voci in B minor