20/9: Difference between revisions

Interval information
Ratio	20/9
Factorization	22 × 3-2 × 5
Monzo	[2 -2 1⟩
Size in cents	1382.404¢
Name	Ptolemaic ninth
Color name	y9, yo 9th
FJS name	[math]\displaystyle{ \text{M9}^{5} }[/math]
Tenney norm (log2 nd)	7.49185
Weil norm (log2 max(n, d))	8.64386
Wilson norm (sopfr(nd))	15
	Open this interval in xen-calc

Latest revision as of 17:12, 31 March 2025

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20/9, the Ptolemaic ninth; the ratio between the 20th and 9th harmonics; one octave above 10/9.

Revision as of 18:55, 22 March 2024 view source Francium (talk \| contribs) 4,826 edits m +color name ← Older edit		Latest revision as of 17:12, 31 March 2025 view source Sintel (talk \| contribs) autopatrolled, emailconfirmed 1,632 edits -nonet
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	'''20/9''', the '''Ptolemaic ninth'''; the ratio between the 20th and 9th harmonics; one octave above [[10/9]].		'''20/9''', the '''Ptolemaic ninth'''; the ratio between the 20th and 9th harmonics; one octave above [[10/9]].

	~~[[Category:Nonet]]~~