1-3-5-9 by 13/10 bihexany

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Circle diagram.

A 13-limit Bihexany. This creates a scale of 1 13/12 9/8 39/32 5/4 13/10 117/80 3/2 13/8 5/3 15/8 39/20 2/1, with steps of 13/12 27/26 13/12 40/39 26/25 9/8 40/39 13/12 40/39 9/8 26/25 40/39. This expands the near-diatonic scale of the base hexany into a 12 note scale that maps decently to a standard keyboard with many simple consonant chords, including 8 notes with perfect fifths above them, each with a 5-limit major or minor third, but also contains multiple obviously xenharmonic intervals, giving you interesting new compositional options without adding an overwhelming number of them or placing any so close together that they blur into one-another.

! 1-3-5-9_by_13/10_Bihexany.scl
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1 3 5 9 by 13/10 2-combination Bihexany
12
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138.572
203.910
342.482
386.313
454.213
658.123
701.955
840.527
884.358
1088.268
1156.168
1200