Immunity comma: Difference between revisions
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{{Infobox Interval | {{Infobox Interval | ||
| Ratio = 1638400/1594323 | | Ratio = 1638400/1594323 | ||
| | | Name = immunity comma | ||
| | | Color name = ssyy2, Sasa-yoyo comma | ||
| | | Comma = yes | ||
}} | }} | ||
The '''immunity comma''' ( | The '''immunity comma''' ({{monzo|legend=1| 16 -13 2 }}, [[ratio]]: 1638400/1594323) is a [[Medium comma|medium]] [[5-limit]] [[comma]] of about 47.2 [[cent]]s. It is the difference between the [[256/243|Pythagorean diatonic semitone (256/243)]] and a stack of two [[syntonic comma]]s, or between a [[25/24|diptolemaic chromatic semitone (25/24)]] and a [[Pythagorean comma]]. | ||
== Temperaments == | |||
[[Tempering out]] this comma leads to the [[immunity]] temperament, which offers [[interseptimal interval|hemifourths and hemitwelfths]] as a result of dividing the diatonic semitone in equal halves. | |||
See [[Immunity family]] for the [[family of temperaments]] where it is tempered out. | |||
== Etymology == | |||
This comma was named by [[Mike Battaglia]] in 2011 such that the corresponding temperament is paired with [[amity]]<ref>[https://yahootuninggroupsultimatebackup.github.io/tuning/topicId_99315.html#99323 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>. | |||
<blockquote>Perhaps "Immunity," because it's a counterpart to Amity or something like that. </blockquote> | |||
—Mike Battaglia | |||
== See also == | |||
* [[Syntonic–limmic equivalence continuum]] | |||
* [[Diaschismic–gothmic equivalence continuum]] | |||
== References == | |||
[[Category:Immunity]] | [[Category:Immunity]] | ||
[[Category:Commas named for their regular temperament properties]] | |||
Latest revision as of 03:33, 27 August 2026
| Interval information |
The immunity comma (monzo: [16 -13 2⟩, ratio: 1638400/1594323) is a medium 5-limit comma of about 47.2 cents. It is the difference between the Pythagorean diatonic semitone (256/243) and a stack of two syntonic commas, or between a diptolemaic chromatic semitone (25/24) and a Pythagorean comma.
Temperaments
Tempering out this comma leads to the immunity temperament, which offers hemifourths and hemitwelfths as a result of dividing the diatonic semitone in equal halves.
See Immunity family for the family of temperaments where it is tempered out.
Etymology
This comma was named by Mike Battaglia in 2011 such that the corresponding temperament is paired with amity[1][2].
Perhaps "Immunity," because it's a counterpart to Amity or something like that.
—Mike Battaglia