Vishnu comma: Difference between revisions
The temp's name is *vishnu*, so *vishnu comma* is arguably standard |
m →Temperaments: link on *family of temperaments* |
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{{Infobox Interval | {{Infobox Interval | ||
| Ratio = 6115295232/6103515625 | | Ratio = 6115295232/6103515625 | ||
| Name = vishnuzma, semisuper comma | | Name = vishnu comma, vishnuzma, semisuper comma | ||
| Color name = sg<sup>14</sup>4, sasepbigu 4th | | Color name = sg<sup>14</sup>4, sasepbigu 4th | ||
| Comma = yes | | Comma = yes | ||
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[[Tempering out]] this comma leads to the 5-limit [[vishnu]] temperament. | [[Tempering out]] this comma leads to the 5-limit [[vishnu]] temperament. | ||
See [[Vishnu family]] for the [[family]] | See [[Vishnu family]] for the [[family of temperaments]] where it is tempered out. | ||
== Etymology == | == Etymology == | ||
Latest revision as of 04:25, 3 August 2026
| Interval information |
vishnuzma,
semisuper comma
The vishnu comma, vishnuzma or semisuper comma (ratio: 6 115 295 232 / 6 103 515 625, monzo: [23 6 -14⟩), is an unnoticeable 5-limit comma measuring about 3.34 cents. It is the amount by which a stack of seven classical chromatic semitones falls short of a just perfect fourth, in other words the interval (4/3)/(25/24)7. Equivalently, it is the amount by which a stack of fourteen classical major thirds misses the Pythagorean augmented fourth.
Temperaments
Tempering out this comma leads to the 5-limit vishnu temperament.
See Vishnu family for the family of temperaments where it is tempered out.
Etymology
This comma was first 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 not clear yet how and why the later names vishnu (for the temperament) and vishnuzma (for the comma) were added.