G. Henle Verlag Grand Fugue, Op. 134 Henle Music Folios Softcover by Ludwig van Beethoven Edited by Ernst Herttrich Standard

Originally composed as the final movement of the String Quartet in B-flat Major, Op. 130, the GroBe Fuge was later adapted into a piano duet by Beethoven himself. New critical edition based on the recently rediscovered autograph score.