5-7-9-13 hexany
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A 13-odd-limit Hexany. This creates a scale of 1 9/7 13/10 117/70 9/5 13/7 2/1, with steps of 9/7 91/90 9/7 14/13 65/63 14/13. This has two clusters at opposite ends of the scale, separated by massive gaps. All intervals fall well between the cracks of the 12edo keyboard, making for an extremely xenharmonic hexany, although at least their size makes it easy to expand into a dekany or bihexany without having further overlapping notes.
! 5-7-9-13_Hexany.scl ! 5 7 9 13 2-combination Hexany 6 ! 435.084 454.213 889.298 1017.596 1071.701 1200
Suggested keyboard mapping: C E F A A# B C