128:162:192:243

Chord information

Harmonics	128:162:192:243
Subharmonics	1/(243:192:162:128)
Intervals from root	1/1 – 81/64 – 3/2 – 243/128
Cents from root	0¢ 408¢ 702¢ 1110¢
Step intervals	81/64, 32/27, 81/64
Step cents	408¢, 294¢, 408¢
Prime limit	3
Genus	35 (243)
Intervallic odd limit	243
Otonal odd limit	243
Utonal odd limit	243
Consistent edos (d ≥ 2)	12edo**, 24edo*, 29edo*, 41edo**, …
* 2 ≤ d < 4; ** 4 ≤ d < 8; *** 8 ≤ d < 16; …

128:162:192:243 is a major seventh chord found in the 3-limit diatonic scale.

It may be considered a 3-limit approximation of 8:10:12:15, tempering the third and seventh by 81/80.