625/624
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| Ratio | 625/624 |
| Factorization | 2-4 × 3-1 × 54 × 13-1 |
| Monzo | [-4 -1 4 0 0 -1⟩ |
| Size in cents | 2.7721928¢ |
| Name | tunbarsma |
| Color name | 3uy4-2, Thuquadyo comma |
| FJS name | [math]\text{dd}{-2}^{5,5,5,5}_{13}[/math] |
| Special properties | square superparticular, reduced |
| Tenney height (log2 nd) | 18.5731 |
| Weil height (log2 max(n, d)) | 18.5754 |
| Wilson height (sopfr (nd)) | 44 |
| Harmonic entropy (Shannon, [math]\sqrt{n\cdot d}[/math]) |
~2.43162 bits |
| Comma size | unnoticeable |
| S-expression | S25 |
| open this interval in xen-calc | |
625/624, the tunbarsma, is an unnoticeable 13-limit comma with a value of roughly 2.77 cents. Tempering out this comma not only equates 25/24 with 26/25 – splitting 13/12 in half and going part of the way towards splitting the 9/8 whole tone into three (the other comma that needs to be tempered in order to finish this job is 676/675) – but also equates 39/32 with the interval that results from stacking four 5/4 major thirds then octave-reducing.
In terms of commas, it is the difference between
It can be factored into
In the 17-limit, it can be factored into