9.2. Prelude in E minor, mm. 1–3: (a) early version, BWV 855a; (b) revised version, BWV 855. Click here for a longer version of this example.
9.2. Prelude in E minor, mm. 1–3: (a) early version, BWV 855a; (b) revised version, BWV 855. Click here for a longer version of this example.