Prelude and Fugue in C minor, BWV 847

Prelude and Fugue in D minor, BWV 851

Prelude and Fugue in E minor, BWV 855

Prelude and Fugue in C-sharp major, BWV 848

Prelude and Fugue in C-sharp minor, BWV 849

Prelude and Fugue in E-flat minor, BWV 853