Graviton: Difference between revisions
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The '''graviton''' | {{Infobox Interval | ||
| Ratio = 129140163/128000000 | |||
| Name = graviton | |||
| Color name = LLg<sup>6</sup>1, lala-tribigu 1sn,<br>Lala-tribigu comma | |||
| Comma = yes | |||
}} | |||
The '''graviton''' ({{monzo|legend=1| -13 17 -6 }}, [[ratio]]: 129140163/128000000) is a [[small comma|small]] [[5-limit]] [[comma]] of about 15.4 [[cent]]s. It belongs to the [[syntonic–chromatic equivalence continuum]] and is equal to the difference between a stack of six [[syntonic comma]]s and an [[apotome]] ((81/80)<sup>6</sup>/(2187/2048)), or in terms of classic chromatic semitone, between a stack of four syntonic commas and a classic chromatic semitone ((81/80)<sup>4</sup>/(25/24)). It is also the [[schisma]] times the [[sensipent comma]] and the [[parakleisma]] times the [[semicomma]]. | |||
== | == Temperaments == | ||
[[Tempering out]] this comma leads to the [[gravity family]] of temperaments. [[Patent val]]s which temper it out include those for {{EDOs| 7, 58, 65, 72, 130, 137, 202 and 346 }}. | |||
== Etymology == | |||
The comma was named by [[Mike Battaglia]] in 2011 in terms of the corresponding temperament, ''gravity'', after its grave-fifth generator<ref>[https://yahootuninggroupsultimatebackup.github.io/tuning/topicId_99315.html Yahoo! Tuning Group| ''Some new 5-limit microtemperaments'']</ref><ref>[https://yahootuninggroupsultimatebackup.github.io/tuning/topicId_99763.html#99794 Yahoo! Tuning Group| ''Names for forgotten or unclassified temperaments'']</ref>. | |||
== References == | |||
[[Category:Gravity]] | [[Category:Gravity]] | ||
[[Category:Commas named for their regular temperament properties]] | |||
Latest revision as of 15:55, 13 February 2026
| Interval information |
Lala-tribigu comma
The graviton (monzo: [-13 17 -6⟩, ratio: 129140163/128000000) is a small 5-limit comma of about 15.4 cents. It belongs to the syntonic–chromatic equivalence continuum and is equal to the difference between a stack of six syntonic commas and an apotome ((81/80)6/(2187/2048)), or in terms of classic chromatic semitone, between a stack of four syntonic commas and a classic chromatic semitone ((81/80)4/(25/24)). It is also the schisma times the sensipent comma and the parakleisma times the semicomma.
Temperaments
Tempering out this comma leads to the gravity family of temperaments. Patent vals which temper it out include those for 7, 58, 65, 72, 130, 137, 202 and 346.
Etymology
The comma was named by Mike Battaglia in 2011 in terms of the corresponding temperament, gravity, after its grave-fifth generator[1][2].