SamSuka
The Exciting Universe Of Music Theory
The Exciting Universe Of Music Theory

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3 gap theorem

Today I drew these diagrams to illustrate the "3 gap theorem", which applies to the intervals we find in generated scales -- When a scale has a generator, why there can only be 3 interval sizes. This applies banally to 12-TET tones, but it's far more interesting when applied to microtonal generators. That's what Erv Wilson's "moments of symmetry" are all about... that's a deep rabbit hole...

anaphoria.com/wilsonintroMOS.html

Anyways, I like how these diagrams turned out so I thought I'd share.

Cheers
Ian

3 gap theorem

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