Thursday, November 05, 2009

Math and music

If you represent the notes in the musical scale as the numbers 0 to 11 (0=A, 1=A#, 2=B, etc.), then the wheel of fifths is merely the multiples of 7 modulo 12. Likewise, the wheel of fourths is 5 mod 12. For some reason, the internets appear to be silent on this relationship.

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