Bach The Art of the Fugue BWV 1080 Edited for Solo Keyboard by Carl Czerny

Uniquely complex in both form and structure, this work by J. S. Bach is regarded as a pinnacle of Western music. 

This solo keyboard edition was edited by Carl Czerny, a student of Beethoven and teacher of Liszt, who wrote hundreds of piano etudes that remain staples of modern piano training.