392/391

Interval information

Ratio	392/391
Factorization	23 × 72 × 17-1 × 23-1
Monzo	[3 0 0 2 0 0 -1 0 -1⟩
Size in cents	4.422056¢
Name	minor semivicema
Color name	23u17uzz1, twethusuzozo 1sn, Twethusuzozo comma
FJS name	[math]\displaystyle{ \text{m2}^{7,7}_{17,23} }[/math]
Special properties	superparticular, reduced
Tenney height (log2 nd)	17.2257
Weil height (log2 max(n, d))	17.2294
Wilson height (sopfr(nd))	60
Harmonic entropy (Shannon, [math]\displaystyle{ \sqrt{nd} }[/math])	~1.37969 bits
Comma size	small
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392/391, the minor semivicema is a 23-limit superparticular comma measuring about 4.42 cents. It forms the difference between 17/14 (septendecimal semi-minor third) and 28/23 (vicesimotertial neutral third).

Etymology

The name minor semivicema is contrast to the major semivicema, 323/322, measuring about 5.37¢, which is the difference between 17/14 and 23/19. 392/391 is smaller than 323/322 by a 19-limit unnoticeable comma, 5491/5488. The word semivicema was introduced by Xenllium in 2023. It is a contraction of semi-minor vicesimotertial comma into a single word.

See also

• Small comma
• List of superparticular intervals