Hey, did I find a new comma???

... or something.

34tet seems to be a temperring of a linear series of 34
17/16's (after octave reduction of course). The JI
intervals that alias at 600c are

2^70
----
17^17

and

17^17
-----
2^69

The interval being tempered out is

2^139
-----
17^34

which is not terribly small at 31.5C, but is probably
incredibly important for the many fans of 17-limit
JI looking for even numbered equal temperments.

Is it the Bobsma?

Bob Valentine

In-Reply-To: <200201021157.NAA50968@ius578.iil.intel.com>
Bob Valentine wrote:

> The interval being tempered out is
>
> 2^139
> -----
> 17^34
>
> which is not terribly small at 31.5C, but is probably
> incredibly important for the many fans of 17-limit
> JI looking for even numbered equal temperments.

There's also 289:288, which is simpler and only 6 cents. Consistent with
58-, 72-, 80- and 94-equal.

Graham