If the four "schisminas" 2401/2400, 3025/3024, 4375/4374 and 9801/9800

vanish, we are in the Hemiennealimmal temperament or something compatible with it, such as the 612 et. I proposed some time back a notation for 11-limit JI based on nine nominals for which these are ignored, and Graham has a similar 10-nominal system based on 494. Is there some kind of convergence going on here?

--- In tuning-math@yahoogroups.com, "Gene Ward Smith

<genewardsmith@j...>" <genewardsmith@j...> wrote:

> If the four "schisminas" 2401/2400, 3025/3024, 4375/4374 and

9801/9800

> vanish, we are in the Hemiennealimmal temperament or something

compatible with it, such as the 612 et. I proposed some time back a

notation for 11-limit JI based on nine nominals for which these are

ignored, and Graham has a similar 10-nominal system based on 494. Is

there some kind of convergence going on here?

Only that we're all wisely economizing our use of symbols by relating

them to very small commas -- schisminas, if you will -- that happen

to vanish in both of these excellent divisions. Since sagittal is

based on 7 nominals, I'd say that that's as far as the resemblance

goes.

--George