1-3-13-17 hexany
A 17-odd-limit Hexany. This creates a scale of 1 17/16 13/12 221/192 17/12 13/8 2/1, with steps of 17/16 52/51 17/16 16/13 39/34 16/13. This is a somewhat warped diminished tetrad plus a couple of extra smaller steps. It does have a couple of perfect fifths, but most of the steps fall well between the cracks of the 12edo keyboard, making it highly xenharmonic in sound overall.
! 1-3-13-17_Hexany.scl ! 1 3 13 17 2-combination Hexany 6 ! 104.955 138.572 243.528 603.000 840.527 1200
Suggested keyboard mapping: C Db D Eb Gb Ab C