Reply to Willaim Annis, continued

>At some point I want to try a suite of pieces using the system
>above enriched with chromatics giving the 10:12:15 minors, and
>flipping back and forth between those in much the same way a baroque
>dance suite might wander between Dmaj and Dmin and see what happens,
>since the 10:12:15 has such a different feel.

Using the same 12-out-of-22 scale I just mentioned, 1 3 1 1 3 1 3 1 1 3 1 3
in 22-tET (which, when starting on A, allows your base scale in the keys of
Amin, Dmin, Gmin, Cmin, Fmin, and Bbmin), the roots A, E, and D will allow
both "6:7:9" and "10:12:15" chords to be constructed on them. This sounds
like it would satisfy your desire to "flip", at least in the key of A minor.
Try it and see how you like it.