Vishnuzma: Difference between revisions

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6115295232/6103515625 = |23 6 -14>, the vishnuzma or semisuper comma of 3.338 cents, is the amount by which seven [[25/24|chromatic semitones]] fall short of a just fourth; in other words, the interval (4/3)/(25/24)^7. Tempering it out leads to [[Vishnuzmic_family|vishnuzmic temperament]].
{{Infobox Interval
| Ratio = 6115295232/6103515625
| Name = vishnuzma, semisuper comma
| Color name = sg<sup>14</sup>4, sasepbigu 4th
| Comma = yes
}}
The '''vishnuzma''' or '''semisuper comma''' ([[ratio]]: 6115295232/6103515625, [[monzo]]: {{monzo| 23 6 -14 }}) of 3.338 [[cent]]s, is the amount by which seven [[25/24|classical chromatic semitones]] fall short of a just perfect fourth and also by which fourteen [[5/4|classical major thirds]] miss the [[729/512|pythagorean augmented fourth]]; in other words the interval (4/3)/(25/24)<sup>7</sup>.  


[[Category:Unnoticeable comma]]
== Temperaments ==
Tempering out this comma leads to temperaments of the [[vishnuzmic family]].


[[Category:Todo:expand]]
== Etymology ==
[[Category:Todo:improve layout]]
This comma was named by [[Gene Ward Smith]] in 2001 in terms of the corresponding temperament, ''semisuper'', for one possible generator of the temperament was a "semisuper fourth"<ref>[https://yahootuninggroupsultimatebackup.github.io/tuning-math/topicId_2121.html Yahoo! Tuning Group | ''Shismic & co'']</ref>. ''Semisuper comma'' appeared shortly after<ref>[https://yahootuninggroupsultimatebackup.github.io/tuning-math/topicId_5025.html Yahoo! Tuning Group | ''5-limit comma names'']</ref>. It is yet to be found out how and why the later name ''vishnuzma'' was added.
 
== Notes ==
 
[[Category:Vishnuzmic]]
[[Category:Commas with unknown etymology]]