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 D-sharp minor -- Prelude and fugue No. 9 in E major -- Prelude and fugue No. 10 in E minor -- Prelude and fugue No. 11 in F major -- Prelude and fugue No. 12 in F minor -- Prelude and fugue No. 13 in F-sharp major -- Prelude and fugue No. 14 in F-sharp minor -- Prelude and fugue No. 15 in G major -- Prelude and fugue No. 16 in G minor -- Prelude and fugue No. 17 in A-flat major -- Prelude and fugue No. 18 in G-sharp minor -- Prelude and fugue No. 19 in A major -- Prelude and fugue No. 20 in A minor -- Prelude and fugue No. 21 in B-flat major -- Prelude and fugue No. 22 in B-flat minor -- Prelude and fugue No. 23 in B major -- Prelude and fugue No. 24 in B minor