256/245
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| Ratio | 256/245 |
| Factorization | 28 × 5-1 × 7-2 |
| Monzo | [8 0 -1 -2⟩ |
| Size in cents | 76.034473¢ |
| Name | bapbo comma |
| Color name | rrg1, rurugu unison |
| FJS name | [math]\text{P1}_{5,7,7}[/math] |
| Special properties | reduced, reduced subharmonic |
| Tenney height (log2 nd) | 15.9366 |
| Weil height (log2 max(n, d)) | 16 |
| Wilson height (sopfr (nd)) | 35 |
| Harmonic entropy (Shannon, [math]\sqrt{nd}[/math]) |
~4.33859 bits |
| Comma size | medium |
| S-expression | S82 × S9 |
| open this interval in xen-calc | |
256/245, the bapbo comma, is the amount by which two 8/7s exceed a 5/4, thus is the stack of two 64/63's and one 81/80. It exceeds 25/24 by 6144/6125 and 24/23 by 736/735. It also falls short of 256/243 by 245/243 and of 21/20 by 1029/1024.