
Here's a complex question that requires someone to reason about the input, can you answer it?
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?


Johann Sebastian Bach
