0:00/??? Bach Organ Prelude in A minor BWV 543 (Arranged by Liszt) From the recording Triumph! Beethoven's Sonata Op. 106 (mp3) $0.99 In cart Not available Out of stock Share It sounds like Bach is improvising at the organ with the opening Prelude.Liszt cleverly builds in dynamics and in drama, always being true to the music that Bach has written.