26:30:39

Chord information
Harmonics	26:30:39
Subharmonics	1/(15:13:10)
Intervals from root	1/1–15/13–3/2
Cents from root	0¢–248¢–702¢
Step intervals	15/13, 13/10
Step cents	248¢, 454¢
Prime limit	13
Genus	3⋅5⋅13 (195)
Intervallic odd limit	15
Otonal odd limit	39
Utonal odd limit	15
Consistent edos (d ≥ 2)	5edo*, 10edo, 19edo, 24edo*, …
	* 2 ≤ d < 4; 4 ≤ d < 8; * 8 ≤ d < 16; …

26:30:39, the inframinor chord, 13-limit inframinor chord, is an triad that contains both an inframinor third as well as a perfect fifth, making it somewhat of a quintessential stable triad in the 13-limit.

Edo approximations for 26:30:39 ▶
*intervals: 15/13, 3/2 · ≤ 60edo, RMS rel. error ≤ 15%*
	Edo	Steps	Cents (¢)	Absolute errors (¢)	RMS (¢)	RMS (%)
▶	10	`0 2 6`	`0.00 240.00 720.00`	`0.00 -7.74 +18.04`	10.80	9.00
▶	14	`0 3 8`	`0.00 257.14 685.71`	`0.00 +9.40 -16.24`	10.59	12.36
▶	15	`0 3 9`	`0.00 240.00 720.00`	`0.00 -7.74 +18.04`	10.80	13.50
▶	19	`0 4 11`	`0.00 252.63 694.74`	`0.00 +4.89 -7.22`	4.97	7.88
▶	21	`0 4 12`	`0.00 228.57 685.71`	`0.00 -19.17 -16.24`	8.43	14.76
▶	24	`0 5 14`	`0.00 250.00 700.00`	`0.00 +2.26 -1.96`	1.72	3.44
▶	29	`0 6 17`	`0.00 248.28 703.45`	`0.00 +0.53 +1.49`	0.62	1.49
▶	34	`0 7 20`	`0.00 247.06 705.88`	`0.00 -0.68 +3.93`	2.03	5.76
▶	39	`0 8 23`	`0.00 246.15 707.69`	`0.00 -1.59 +5.74`	3.15	10.22
▶	43	`0 9 25`	`0.00 251.16 697.67`	`0.00 +3.42 -4.28`	3.15	11.29
▶	44	`0 9 26`	`0.00 245.45 709.09`	`0.00 -2.29 +7.14`	4.01	14.71
▶	45	`0 9 26`	`0.00 240.00 693.33`	`0.00 -7.74 -8.62`	3.87	14.53
▶	48	`0 10 28`	`0.00 250.00 700.00`	`0.00 +2.26 -1.96`	1.72	6.89
▶	50	`0 10 29`	`0.00 240.00 696.00`	`0.00 -7.74 -5.96`	3.31	13.79
▶	53	`0 11 31`	`0.00 249.06 701.89`	`0.00 +1.32 -0.07`	0.64	2.81
▶	55	`0 11 32`	`0.00 240.00 698.18`	`0.00 -7.74 -3.77`	3.16	14.49
▶	58	`0 12 34`	`0.00 248.28 703.45`	`0.00 +0.53 +1.49`	0.62	2.99