Conundrumer | pegboard marbles arrogantly play Chopin - Fantaisie-Impromptu (Op. 66) @conundrumer | Uploaded 4 years ago | Updated 2 minutes ago
I figured out how to simulate physics backwards and force these marbles to play music.

HOW IT WORKS: delu.medium.com/when-marbles-falling-onto-piano-keys-happen-to-play-music-af7c9d0934a6

MIDI performance from http://www.kunstderfuge.com/chopin.htm