1-5-7-17 hexany
A 17-odd-limit Hexany. This creates a scale of 1 17/16 7/5 119/80 17/10 7/4 2/1, with steps of 17/16 112/85 17/16 8/7 35/34 8/7. With no perfect fifths, only one that falls within the diatonic range and a massive gap on one side, this is a highly xenharmonic hexany which does not have any familiar chords in it, with the most stable dyads being the two major thirds.

! 1-5-7-17_Hexany.scl ! 1 5 7 17 2-combination Hexany 6 ! 104.955 582.512 687.467 918.641 968.825 1200
Suggested keyboard mapping: C Db F# G A Bb C