I made a synthesizer out of a Möbius strip, but it wasn't just for fun. Musical chords have some rich geometrical and topological properties that you might not be able to see until you put your piano on a different shape. In this video, I'll introduce you to the geometry of musical chords, show you some of the electronics that went into my instrument, and demonstrate how mathematical music can be.

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0:00 Quick Performance
0:22 Introduction
1:30 Why Möbius?
5:14 Making the Instrument
7:19 Patterns in Music
8:18 Clair de Lune on a Möbius Strip: Animated!

Thank you to Caleb Birtwistle for captioning!

Dmitri Tymoczko, The Geometry of Musical Chords: https://dmitri.mycpanel.princeton.edu...
Fun resource on capacitive touch sensors: https://hackaday.com/2015/11/30/conju...