Question: The Toccata and Fugue in D minor, BWV 538, is an organ piece by Johann Sebastian Bach, like the better-known BWV 565, the Toccata and Fugue in D minor, BWV 565, is a piece of organ music written, according to its oldest extant sources, by who?
Sentence (from "Toccata, Adagio and Fugue in C major, BWV 564"): As is the case with most other organ works by Bach, the autograph score does not survive.
Relevant evidence: No