980/729
| Ratio | 980/729 |
| Monzo | [2 -6 1 2⟩ |
| Size in cents | 512.23552 |
| Name(s) | sensamagic fourth, septimal sesquidiminished grave fifth |
| Color name | zzy5, zozoyo 5th |
980/729, the sensamagic fourth or septimal sesquidiminished grave fifth is a 7-limit ratio of about 512 cents, sharp of a just fourth 4/3 by a sensamagic comma 245/243.
It arises in just intonation scales as the difference between the supermajor third 9/7 and the semidiminished seventh 140/81, making it a critical tempering target in the Canovian chord.
See also
- 729/490, its octave complement
- Gallery of just intervals
