The Well-Tempered Clavier, Book I

Prelude I in C major, BWV 846

Prelude XIII in F-sharp major, BWV 858

Fugue I in C major, BWV 846

Fugue XIII in F-sharp major, BWV 858

Prelude II in C minor, BWV 847

Prelude XIV in F-sharp minor, BWV 859

Fugue II in C minor, BWV 847

Fugue XIV in F-sharp minor, BWV 859