20:30:36:45

Chord information

Harmonics	20:30:36:45
Subharmonics	1/(9:6:5:4)
Intervals from root	1/1 – 3/2 – 9/5 – 9/4
Cents from root	0¢ 702¢ 1018¢ 1404¢
Step intervals	3/2, 6/5, 5/4
Step cents	702¢, 316¢, 386¢
Color names	gu-9 no-3 or g9no3 sub-9 no-3 or s9no3 sus-2 gu-7 or 2,g7
Prime limit	5
Genus	32 ⋅ 5 (45)
Intervallic odd limit	9
Otonal odd limit	45
Utonal odd limit	9
Consistent edos (d≥2)	12edo*, 19edo*, 34edo*, 41edo*, …
* 2≤d<4; ** 4≤d<8; *** 8≤d<16; …

20:30:36:45 can be thought of as either a thirdless dominant ninth chord or a sus-2 dominant seventh chord, especially if voiced 40:45:60:72.

See also

• 140:180:252:315

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