A Little Nightmare Music is an opera in "one irrevocable act" by Peter Schickele under the pseudonym he uses for parodies and comical works P. D. Q. Bach.

The title of the work refers to the English translation of Mozart's famous Eine kleine Nachtmusik (A Little Night Music).

The opera is described as being "based on a dream he had December 4, 1791, the night that Wolfgang Amadeus Mozart died and Antonio Salieri didn't."

The album also includes two other works by P. D. Q. Bach: an octet (Octoot for wind instruments) and a parody of Handel's Water Music and Music for the Royal Fireworks, Royal Firewater Musick.

Bach, Octoot for wind instruments, S. 8 and Royal Firewater Musick, for bottles and orchestra (original version), S. 1/5.