Wednesday, November 19, 2025

12 Note Scale in 31edo

Here is a new piece in 31edo, using a conventional 12 note scale built from a chain of perfect fifths. 31edo has flatter fifths than conventional 12edo, which makes available a reasonable accurate 7:4 interval.

The green arrows here are perfect fifths, the blue arrows are major thirds, and the red arrows are 7:4 intervals which are not conventional diatonic intervals. These red arrows create many new comma traversals, e.g. Eb - G - D - A -C# - Eb.

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