RE: [tuning] 9:7 -> 7:5

I wrote,

>> 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.

Gary Morrison wrote,

>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.

Oh, I didn't get that. The wide M3 in 17-tET is indeed very dissonant; at
423.5¢, it is within a cent or two of a harmonic entropy _maximum_ -- that
is, the point at which the ear is most confused between whether it is
hearing 9:7, 5:4, or other alternatives.