Scheme comma

From Xenharmonic Wiki
Revision as of 01:12, 20 October 2025 by BudjarnLambeth (talk | contribs) (Original namer on Discord (Jerdle) renamed it: "Speaking of bad names, I named a comma the skeetsma. While it was simply a derivative of "keema" and "schisma" with the t added to reduce confusion, and "skeet shooting" is a perfectly respectable word, "skeet" has other slang meanings. As such, I propose renaming it to "scheme comma"")
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Interval information
Ratio 14348907/14336000
Factorization 2-14 × 315 × 5-3 × 7-1
Monzo [-14 15 -3 -1⟩
Size in cents 1.557965¢
Name scheme comma
Color name LLrg3-2, Lalarutrigu comma
FJS name [math]\displaystyle{ \text{m}{-2}_{5,5,5,7} }[/math]
Special properties reduced
Tenney norm (log2 nd) 47.5476
Weil norm (log2 max(n, d)) 47.5489
Wilson norm (sopfr(nd)) 95
Comma size unnoticeable
Open this interval in xen-calc

The scheme comma is a 7-limit unnoticeable comma. It is equal to the difference between the Pythagorean comma and the keema (875/864). This makes it a keemic schisma. It is also equal to the difference between the schisma (32805/32768) and the ragisma (4375/4374).

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