Circus Galop is a piece written for player pianos by Marc-André Hamelin. It was composed between the years 1991 and 1994 and it is dedicated to Beatrix and Jürgen Hocker, piano roll makers. Its duration is approximately 4–5 minutes. Scores of this piece are available through the Sorabji Archive. Piano rolls of this piece are available from Wolfgang Heisig and Jürgen Hocker, who have recorded all three of Hamelin's player piano pieces on the MDG label, which were released in April 2008.
It is impossible for a single human to play 21 notes simultaneously, as required by this piece. However, it is usually used to test the maximum potential of MIDI software, such as Synthesia and PianoMIDI.
There is an earlier piece of music with the same name written by William Groscurth (source Library of Congress)
- "Marc-André Hamelin: compositions". The Sorabji Archive. Retrieved 23 October 2011.
- "Wolfgang Heisig and Jürgen Hocker". Official website. Retrieved 23 October 2011.
- Frazer, Jarvis (21 August 2011). "Discography of Marc-André Hamelin". Retrieved 23 October 2011.
- "[HD] Synthesia - Circus Galop (Crazy Ending!)". Youtube. Retrieved 23 October 2011.