406/405

Interval information

Ratio	406/405
Subgroup monzo	2.3.5.7.29 [1 -4 -1 1 1⟩
Size in cents	4.269383¢
Name	minor semivinema
Color name	Twenozogu 2nd
FJS name	[math]\displaystyle{ \text{d2}^{7,29}_{5} }[/math]
Special properties	superparticular, reduced
Tenney height (log2 nd)	17.3271
Weil height (log2 max(n, d))	17.3307
Wilson height (sopfr(nd))	55
Harmonic entropy (Shannon, [math]\displaystyle{ \sqrt{nd} }[/math])	~1.36763 bits
Comma size	small
S-expression	S28 × S29
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406/405, the minor semivinema is a comma in the 29-limit. It forms the difference between 29/27 (vicesimononal semitone) and 15/14.

Etymology

The word semivinema was introduced by Xenllium in 2024. It is a contraction of vicesimononal semitone comma into a single word.

See also

• 378/377 – major semivinema
• Small comma
• List of superparticular intervals