1-7-9-17 by 4/3 bihexany
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A 17-limit Bihexany. This creates a scale of 1 17/16 9/8 17/14 9/7 4/3 153/112 17/12 3/2 34/21 12/7 51/28 2/1, with steps of 17/16 18/17 68/63 18/17 28/27 459/448 28/27 18/17 68/63 18/17 17/16 56/51. As the base hexany has 9/8's, but no 3/2's, this is the obvious way to add them, giving you 8 perfect fifths around the scale and no large gaps, making it easy to construct chord sequences while still having multiple obviously xenharmonic steps and no simple 5-limit chords.
! 1-7-9-17_by 4/3_Bihexany.scl ! 1 7 9 17 by 4/3 2-combination Bihexany 12 ! 104.955 203.910 336.129 435.084 498.044 540.039 603.000 701.955 834.174 933.129 1038.084 1200