Slonimsky, Sergei: 24 Preludes and Fugues for Piano. Volume I (middle and senior grades)
Preludes and fugues cover all the keys of the fifth circle and are arranged in chromatic sequence, as in the volumes of JS Bach's Well-Tempered Clavier.
Content:
I. Prelude. Fugue (4 voices)
II. Prelude. Fugue (3 voices)
III. Prelude. Fugue (3 voices)
IV. Prelude. Fugue (4 voices)
V. Prelude. Fugue (3 voices)
VI. Prelude. Fugue (3 voices)
VII. Prelude. Fugue (4 voices)
Viii. Prelude. Fugue (5 voices)
IX. Prelude. Fugue (3 voices)
X. Prelude. Fugue (4 voices)
Xi. Prelude. Fugue (3 voices)
XII. Prelude. Fugue (5 voices)