9:7 -> 7:5

> The "7:5" is not very consonant in 17TET, where the best approximation of a
> 7:5 is 18¢ flat of a just 7:5.

Yes, I realize that.

I was drawing a JI analogy to one of Ivor's favorite things to do with 17TET,
wherein he resolves its dissonant, very wide M3 outward to a fourth rather than
fourths contracting into thirds. I was pointing out that, in the JI analogy,
unlike in 17TET, the 9:7 probably could resolve into a 7:5 - an augmented fourth
in addition to a perfect one.