Book 1 - Prelude and Fugue I in C Major - Prelude and Fugue II in A Minor - Prelude and Fugue III in G Major - Prelude and Fugue IV in E Minor - Prelude and Fugue V in D Major - Prelude and Fugue VI in B Minor Book 2 - Prelude and Fugue VII in A Major - Prelude and Fugue VII in F Sharp Minor - Prelude and Fugue IX in E Major- Prelude and Fugue X in C Sharp Minor - Prelude and Fugue XI in B Major - Prelude and Fugue XII in G Sharp Minor Book 3 - Prelude and Fugue XIII in F Sharp Major - Prelude and Fugue XIV in E Flat Minor - Prelude and Fugue XV in D Flat Major - Prelude and Fugue XVI in B Flat Minor - Prelude and Fugue XVII in A Flat Major - Prelude and Fugue XVIII in F Minor Book 4 - Prelude and Fugue XIX in E Flat Major - Prelude and Fugue XX in C Minor - Prelude and Fugue XXI in B Flat Major - Prelude and Fugue XXII in G Minor - Prelude and Fugue XXIII in F Major - Prelude and Fugue XXIV in D Minor