100:125:144:180
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| Harmonics | 100:125:144:180 |
| Subharmonics | 1/(180:144:125:100) |
| Intervals from root | 1/1 – 5/4 – 36/25 – 9/5 |
| Cents from root | 0¢ 386¢ 631¢ 1018¢ |
| Step intervals | 5/4, 144/125, 5/4 |
| Step cents | 386¢, 245¢, 386¢ |
| Color name | yo gu-7 gugu-5 or y,g7(gg5) |
| Prime limit | 5 |
| Genus | 32 ⋅ 53 (1125) |
| Intervallic odd limit | 125 |
| Otonal odd limit | 125 |
| Utonal odd limit | 125 |
100:125:144:180 is a condissonant dominant seventh flat five chord formed by adding a 36/25 diminished fifth at a 5/4 major third below a 9/5 minor seventh.
It is a rotation of a French sixth chord, 72:90:100:125.