Vishnuzma
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| Ratio | 6115295232/6103515625 |
| Factorization | 223 × 36 × 5-14 |
| Monzo | [23 6 -14⟩ |
| Size in cents | 3.3380111¢ |
| Names | vishnuzma, semisuper comma |
| Color name | sg144, sasepbigu 4th |
| FJS name | [math]\text{7d4}_{5,5,5,5,5,5,5,5,5,5,5,5,5,5}[/math] |
| Special properties | reduced |
| Tenney height (log2 nd) | 65.0168 |
| Weil height (log2 max(n, d)) | 65.0196 |
| Wilson height (sopfr(nd)) | 134 |
| Harmonic entropy (Shannon, [math]\sqrt{nd}[/math]) |
~1.30321 bits |
| Comma size | unnoticeable |
| open this interval in xen-calc | |
The vishnuzma or semisuper comma (ratio: 6115295232/6103515625, monzo: [23 6 -14⟩) of 3.338 cents, is the amount by which seven classical chromatic semitones fall short of a just perfect fourth and also by which fourteen classical major thirds miss the pythagorean augmented fourth; in other words the interval (4/3)/(25/24)7.
Temperaments
Tempering out this comma leads to temperaments of the vishnuzmic family.
Etymology
This comma was named by Gene Ward Smith in 2002 as the semisuper comma[1]. It is yet to be found out how and why the later name vishnuzma was added.