12:16:18:27

12:16:18:27 is a 3-limit sus4 add-9 chord. See also its homonym 18:24:27:32, a dom-7 sus4 chord.

Chord information

Harmonics	12:16:18:27
Subharmonics	1/(36:27:24:16)
Intervals from root	1/1–4/3–3/2–9/4
Cents from root	0¢–498¢–702¢–1404¢
Step intervals	4/3, 9/8, 3/2
Step cents	498¢, 204¢, 702¢
Color name	sus-4 add-9 or 4,9
Prime limit	3
Genus	33 (27)
Intervallic odd limit	27
Otonal odd limit	27
Utonal odd limit	27
Consistent edos (d ≥ 2)	5edo*, 12edo***, 17edo*, 24edo**, …
* 2 ≤ d < 4; ** 4 ≤ d < 8; *** 8 ≤ d < 16; …

Edo approximations for 12:16:18:27 ▶
intervals: 4/3, 3/2, 9/4 · ≤ 60edo, RMS rel. error ≤ 15%

	Edo	Steps	Cents (¢)	Absolute errors (¢)	RMS (¢)	RMS (%)
▶	7	0  3  4  8	0.00 514.29 685.71 1371.43	0.00 +16.24 -16.24 -32.48	18.16	10.59
▶	12	0  5  7 14	0.00 500.00 700.00 1400.00	0.00  +1.96  -1.96  -3.91	2.19	2.19
▶	17	0  7 10 20	0.00 494.12 705.88 1411.76	0.00  -3.93  +3.93  +7.85	4.39	6.22
▶	19	0  8 11 22	0.00 505.26 694.74 1389.47	0.00  +7.22  -7.22 -14.44	8.07	12.78
▶	22	0  9 13 26	0.00 490.91 709.09 1418.18	0.00  -7.14  +7.14 +14.27	7.98	14.63
▶	24	0 10 14 28	0.00 500.00 700.00 1400.00	0.00  +1.96  -1.96  -3.91	2.19	4.37
▶	29	0 12 17 34	0.00 496.55 703.45 1406.90	0.00  -1.49  +1.49  +2.99	1.67	4.03
▶	31	0 13 18 36	0.00 503.23 696.77 1393.55	0.00  +5.18  -5.18 -10.36	5.79	14.96
▶	34	0 14 20 40	0.00 494.12 705.88 1411.76	0.00  -3.93  +3.93  +7.85	4.39	12.44
▶	36	0 15 21 42	0.00 500.00 700.00 1400.00	0.00  +1.96  -1.96  -3.91	2.19	6.56
▶	41	0 17 24 48	0.00 497.56 702.44 1404.88	0.00  -0.48  +0.48  +0.97	0.54	1.85
▶	46	0 19 27 54	0.00 495.65 704.35 1408.70	0.00  -2.39  +2.39  +4.79	2.68	10.26
▶	48	0 20 28 56	0.00 500.00 700.00 1400.00	0.00  +1.96  -1.96  -3.91	2.19	8.74
▶	53	0 22 31 62	0.00 498.11 701.89 1403.77	0.00  +0.07  -0.07  -0.14	0.08	0.34
▶	58	0 24 34 68	0.00 496.55 703.45 1406.90	0.00  -1.49  +1.49  +2.99	1.67	8.07
▶	60	0 25 35 70	0.00 500.00 700.00 1400.00	0.00  +1.96  -1.96  -3.91	2.19	10.93