Vishnuzma: Difference between revisions
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| Ratio = 6115295232/6103515625 | | Ratio = 6115295232/6103515625 | ||
| Name = vishnuzma, semisuper comma | | Name = vishnuzma, semisuper comma | ||
| Color name = sg<sup>14</sup>4, sasepbigu 4th | |||
| Comma = yes | | Comma = yes | ||
}} | }} | ||
'''6115295232/6103515625 | 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: | == Temperaments == | ||
Tempering out this comma leads to temperaments of the [[vishnuzmic family]]. | |||
== Etymology == | |||
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]] | |||
Latest revision as of 05:38, 17 April 2025
| Interval information |
semisuper comma
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 2001 in terms of the corresponding temperament, semisuper, for one possible generator of the temperament was a "semisuper fourth"[1]. Semisuper comma appeared shortly after[2]. It is yet to be found out how and why the later name vishnuzma was added.