729/512
| Ratio | 729/512 |
| Monzo | |-9 6> |
| Size in cents | 611.73001 |
| Name(s) | Pythagorean tritone Pythagorean augmented fourth |
| Color name | Lw4, large wa 4th |
| 270px [sound info] | |
The Pythagorean augmented fourth, 729/512, may be reached by stacking six perfect fifths (3/2), and reducing by three octaves. It is separated from the 5-limit interval of 64/45 by the schisma, 32805/32768 (less than 2 cents).
