81/40: Difference between revisions

Interval information
Ratio	81/40
Factorization	2-3 × 34 × 5-1
Monzo	[-3 4 -1⟩
Size in cents	1221.506¢
Name	syntonic octave
FJS name	[math]\displaystyle{ \text{P8}_{5} }[/math]
Tenney norm (log2 nd)	11.6618
Weil norm (log2 max(n, d))	12.6797
Wilson norm (sopfr(nd))	23
	Open this interval in xen-calc

Revision as of 12:03, 28 June 2021

The ratio of 81/40 is essentially a syntonic comma (81/80) - and the distance between the 81st and 40th harmonic - but one octave higher.

This interval spans the size of 1221.506290 cents.

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-The ratio of '''81/40''' is essentially a syntonic comma ([[81/80]]) - and the distance between the 81st and 40th harmonics - but one octave higher.
+The ratio of '''81/40''' is essentially a syntonic comma ([[81/80]]) - and the distance between the 81st and 40th harmonic - but one octave higher.
 This interval spans the size of 1221.506290 cents.
 {{Infobox Interval|Ratio=81/40|Size in cents=1221.506290|Name=syntonic octave}}