1-3-9-15 by 7/6 bihexany
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A 7-limit bihexany. This creates a scale of 1 35/32 9/8 7/6 5/4 21/16 45/32 35/24 3/2 105/64 7/4 15/8 2/1, with steps of 35/32 36/35 28/27 15/14 21/20 15/14 28/27 36/35 35/32 16/15 15/14 16/15. This is one of the better ways of filling in the gap in the base hexany, with some of the factors cancelling out to create new simple ratios, although the ratio between the largest and smallest steps is still over 3:1 and some of the 8 perfect fifths are not mapped to 7 steps on the keyboard.
! 1-3-9-15_by_7/6_Bihexany.scl ! 1 3 9 15 by 7/6 2-combination Bihexany 12 ! 155.139 203.910 266.871 386.313 470.781 590.223 653.184 701.955 857.094 968.825 1088.268 1200