875/864

Interval information

Ratio	875/864
Factorization	2-5 × 3-3 × 53 × 7
Monzo	[-5 -3 3 1⟩
Size in cents	21.90205¢
Name	keema
Color name	zy31, zotriyo unison
FJS name	[math]\displaystyle{ \text{A1}^{5,5,5,7} }[/math]
Special properties	reduced
Tenney norm (log2 nd)	19.528
Weil norm (log2 max(n, d))	19.5463
Wilson norm (sopfr(nd))	41
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875/864, the keema, is a 7-limit comma measuring about 21.9 cents. It marks the difference between the septimal minor seventh (7/4) and a stack of three just minor thirds (6/5), or between a septimal major seventh (27/14) and a stack of three just major thirds (5/4). It is also the sum of 245/243 and 225/224, the sum of 100/99 and 385/384 and the difference between 49/48 and 126/125. Tempering it out leads to the keemic family of temperaments.

See also

• Keemic family
• Keemic temperaments
• Small comma