180:225:288:320
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| Harmonics | 180:225:288:320 |
| Subharmonics | 1/(80:64:50:45) |
| Intervals from root | 1/1 – 5/4 – 8/5 – 16/9 |
| Cents from root | 0¢ 386¢ 814¢ 996¢ |
| Step intervals | 5/4, 32/25, 10/9 |
| Step cents | 386¢, 427¢, 182¢ |
| Color name | yo add-7 guqu-5 or y,7(gq5) |
| Prime limit | 5 |
| Genus | 32 ⋅ 52 (225) |
| Intervallic odd limit | 45 |
| Otonal odd limit | 225 |
| Utonal odd limit | 45 |
180:225:288:320 is a condissonant tetrad found on V+ (3⁄2) and II+ (9⁄8) in the duodene.
In augmented temperament it is tempered together with 144:180:225:256, a dominant seventh sharp five chord.