128/91
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| Ratio | 128/91 |
| Factorization | 27 × 7-1 × 13-1 |
| Monzo | [7 0 0 -1 0 -1⟩ |
| Size in cents | 590.64643¢ |
| Names | smaller huntmic tritone, octave-reduced 91st subharmonic |
| Color name | thuru 4th |
| FJS name | [math]\text{A4}_{7,13}[/math] |
| Special properties | reduced, reduced subharmonic |
| Tenney height (log2 nd) | 13.5078 |
| Weil height (log2 max(n, d)) | 14 |
| Wilson height (sopfr (nd)) | 34 |
| Harmonic entropy (Shannon, [math]\sqrt{nd}[/math]) |
~4.16604 bits |
| open this interval in xen-calc | |
128/91 is the 91st subharmonic or smaller huntmic tritone, measuring about 590.6¢. It is 640/637 (huntma, about 8.13¢) sharp of 7/5, or 4096/4095 (schismina, about 0.42¢) sharp of 45/32. Its inversion is the larger huntmic tritone, or octave-reduced 91th harmonic 91/64, and the interval that separates them is the small comma 8281/8192, about 18.7¢.