3-11-13-15 by 24/17 bihexany

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Circle diagram.

A 17-limit bihexany. This creates a scale of 1 195/187 13/12 13/11 5/4 15/11 24/17 65/44 26/17 312/187 30/17 360/187 2/1, with steps of 195/187 187/180 12/11 55/52 12/11 88/85 1105/1056 88/85 12/11 55/52 12/11 187/180. While it does not have any perfect fifths, this is pretty much the optimal way to expand the base hexany outward on a melodic level, and does cancel out at least some of the factors to produce simpler intervals as well, although others remain complex. It does have one fifth above the A which is only flat by 936/935, which provides probably the clearest point of stability.

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3 11 13 15 by 24/17 2-combination Hexany
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72.523
138.572
289.209
386.313
536.950
596.999
675.523
735.572
886.209
983.313
1133.950
1200