oooopss

>
> Robert C Valentine wrote,
>
> >A potential tuning for the first that keeps things to 3 step sizes
> >(without going into your equivalence classes) is
>
> > 9/8 28/27 9/8 9/8 28/27 243/196 28/27
> >1 9/8 7/6 4/3 3/2 14/9 27/14 2/1
>
> Um, I don't think the interval between 7/6 and 4/3 is 9:8.

Well, maybe for large values of 9/8 or small values of 4/3.
Heres a fix...
9 14
9/8 256/243 9/8 9/8 256/243 3 / 2 256/243
1 9/8 32/27 4/3 3/2 128/81 243/128 2/1

0 204 294 498 702 792 1110

regarding fixed-pitch mideast instruments, I went to the
local store and the synthesizers for the "Arab music"
market are much more capable than I described. There were
many buttons which I got the impression accessed seven or
eight tuning tables but perhaps they were quarter-tone
buttons for each key.

Bob Valentine