Shibboleth comma
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| Ratio | 1953125/1889568 |
| Factorization | 2-5 × 3-10 × 59 |
| Monzo | [-5 -10 9⟩ |
| Size in cents | 57.273416¢ |
| Name | shibboleth comma |
| Color name | y9-2, tritriyo negative 2nd |
| FJS name | [math]\text{ddd}{-2}^{5,5,5,5,5,5,5,5,5}[/math] |
| Special properties | reduced |
| Tenney height (log2 nd) | 41.747 |
| Weil height (log2 max(n, d)) | 41.7947 |
| Wilson height (sopfr (nd)) | 85 |
| Harmonic entropy (Shannon, [math]\sqrt{n\cdot d}[/math]) |
~4.76951 bits |
| Comma size | medium |
| open this interval in xen-calc | |
The shibboleth comma (monzo: [-5 -10 9⟩, ratio: 1953125/1889568) is a medium 5-limit comma measuring about 57.3 cents. It equates nine just minor thirds (6/5) with a double compound fourth (16/3). Tempering out this comma leads to the shibboleth family.