225:270:320:384

Chord information

Harmonics	225:270:320:384
Subharmonics	1/(384:320:270:225)
Intervals from root	1/1–6/5–64/45–128/75
Cents from root	0¢–316¢–610¢–925¢
Step intervals	6/5, 32/27, 6/5
Step cents	316¢, 294¢, 316¢
Color name	gu gu-5 gugu-7 or g(g5)gg7
Prime limit	5
Genus	33⋅52 (675)
Intervallic odd limit	75
Otonal odd limit	225
Utonal odd limit	225
Consistent edos (d ≥ 2)	4edo**, 8edo*, 49edo*, 53edo*, …
* 2 ≤ d < 4; ** 4 ≤ d < 8; *** 8 ≤ d < 16; …

225:270:320:384 is a diminished seventh chord found on vii^o7 (15⁄8) in the duodene.

It is structurally similar to the 36:45:54:64 dominant seventh chord found on V (3⁄2), stacking on an additional minor third (to make a “dominant ninth”) and dropping the root.