4:5:6:9: Difference between revisions

Latest revision as of 04:52, 26 May 2026

4:5:6:9 is an added-ninth chord in 5-limit just intonation.

Edo approximations for 4:5:6:9 ▶
*intervals: 5/4, 3/2, 9/4 · ≤ 60edo, RMS rel. error ≤ 15%*
	Edo	Steps	Cents (¢)	Absolute errors (¢)	RMS (¢)	RMS (%)
▶	7	`0 2 4 8`	`0.00 342.86 685.71 1371.43`	`0.00 -43.46 -16.24 -32.48`	16.45	9.60
▶	12	`0 4 7 14`	`0.00 400.00 700.00 1400.00`	`0.00 +13.69 -1.96 -3.91`	6.91	6.91
▶	19	`0 6 11 22`	`0.00 378.95 694.74 1389.47`	`0.00 -7.37 -7.22 -14.44`	5.10	8.08
▶	22	`0 7 13 26`	`0.00 381.82 709.09 1418.18`	`0.00 -4.50 +7.14 +14.27`	7.13	13.07
▶	24	`0 8 14 28`	`0.00 400.00 700.00 1400.00`	`0.00 +13.69 -1.96 -3.91`	6.91	13.83
▶	31	`0 10 18 36`	`0.00 387.10 696.77 1393.55`	`0.00 +0.78 -5.18 -10.36`	4.48	11.58
▶	34	`0 11 20 40`	`0.00 388.24 705.88 1411.76`	`0.00 +1.92 +3.93 +7.85`	2.91	8.24
▶	41	`0 13 24 48`	`0.00 380.49 702.44 1404.88`	`0.00 -5.83 +0.48 +0.97`	2.75	9.41
▶	46	`0 15 27 54`	`0.00 391.30 704.35 1408.70`	`0.00 +4.99 +2.39 +4.79`	2.03	7.79
▶	53	`0 17 31 62`	`0.00 384.91 701.89 1403.77`	`0.00 -1.41 -0.07 -0.14`	0.58	2.57
▶	58	`0 19 34 68`	`0.00 393.10 703.45 1406.90`	`0.00 +6.79 +1.49 +2.99`	2.52	12.20
▶	60	`0 19 35 70`	`0.00 380.00 700.00 1400.00`	`0.00 -6.31 -1.96 -3.91`	2.34	11.70

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 {{Infobox Chord|ColorName=yo add-9 or y,9}}
 '''4:5:6:9''' is an added-ninth chord in [[5-limit]] [[just intonation]].
+{{chord edo approximation}}
 == See also ==