1-3-9-13 stellated hexany
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A 13-odd-limit stellated Hexany. This creates a scale of 1 9/8 39/32 351/256 3/2 13/8 27/16 117/64 2/1, with steps of 9/8 13/12 9/8 128/117 13/12 27/26 13/12 128/117. While it only adds two notes to the base hexany, they are well positioned ones, slicing the largest steps in two to produce a fairly even scale with 6 perfect fifths that makes a good introduction to neutral harmony. As the most complex steps are only 352/351 away from the simpler 11/6 & 11/8, they can easily be interpreted as those intervals, giving the scale even greater coherence.
! 1-3-9-13_Stellated_Hexany.scl ! 1 3 9 13 1-3-combination Hexany 8 ! 203.910 342.482 546.392 701.955 840.527 905.865 1044.437 1200
Suggested keyboard mapping: C D Eb F G Ab A Bb C.