Canopic comma: Difference between revisions
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{{Infobox Interval | {{Infobox Interval | ||
| Ratio = 16875/16807 | | Ratio = 16875/16807 | ||
| Name = | | Name = canopic comma, canopus comma | ||
| Color name = r<sup>5</sup>y<sup>4</sup>-4, quinru-aquadyo negative 4th | | Color name = r<sup>5</sup>y<sup>4</sup>-4, quinru-aquadyo negative 4th | ||
| Comma = yes | | Comma = yes | ||
}} | }} | ||
The ''' | The '''canopic comma''' or '''canopus comma''' ([[ratio]]: 16875/16807, {{monzo|legend=1| 0 3 4 -5 }}), formerly ''mirkwai comma'', is a [[small comma|small]] [[7-limit]] (specifically [[3.5.7 subgroup|3.5.7-subgroup]]) [[comma]] measuring about 6.99 [[cent]]s. It is also known as ''small BP diesis'' in [[Bohlen–Pierce]] practice. | ||
== Temperaments == | == Temperaments == | ||
Tempering this comma | [[Tempering out]] this comma alone in the 7-limit leads to the rank-3 [[canopic]] temperament. It is tempered out in rank-2 temperaments such as [[miracle]], [[octoid]], [[semisept]], [[grendel]], [[kwai]], [[pluto]], and [[mirkat]], which comprise the rank-2 canopic clan. | ||
See [[Canopic clan]] for a collection of rank-2 temperaments where it is tempered out. | |||
== Etymology == | == Etymology == | ||
The name ''mirkwai'' was given by [[Gene Ward Smith]] in 2005 as a contraction of ''[[miracle]]'' and ''[[kwai]]''<ref>[https://yahootuninggroupsultimatebackup.github.io/tuning-math/topicId_12900.html Yahoo! Tuning Group | ''Seven limit comma names from pairs of temperament names'']</ref>. | ''Canopic'' and ''canopus'' are named after the 3.5.7-subgroup temperament [[canopus]], following a convention of naming tritave-based regular temperaments after stars. | ||
The name ''mirkwai'' was given by [[Gene Ward Smith]] in 2005 as a contraction of ''[[miracle]]'' and ''[[kwai]]''<ref>[https://yahootuninggroupsultimatebackup.github.io/tuning-math/topicId_12900.html Yahoo! Tuning Group | ''Seven limit comma names from pairs of temperament names'']</ref>. Not widely accepted, it is effectively deprecated by 2026. | |||
The name ''small BP diesis'' was given in <ref>[https://www.huygens-fokker.org/bpsite/names.html The Bohlen-Pierce Site | ''BP Names and Definitions'']</ref>. | The name ''small BP diesis'' was given in <ref>[https://www.huygens-fokker.org/bpsite/names.html The Bohlen-Pierce Site | ''BP Names and Definitions'']</ref>. | ||
== | == References == | ||
[[Category: | [[Category:Canopic]] | ||
[[Category:Commas named | [[Category:Commas named for other reasons]] | ||
Latest revision as of 12:10, 6 June 2026
| Interval information |
canopus comma
The canopic comma or canopus comma (ratio: 16875/16807, monzo: [0 3 4 -5⟩), formerly mirkwai comma, is a small 7-limit (specifically 3.5.7-subgroup) comma measuring about 6.99 cents. It is also known as small BP diesis in Bohlen–Pierce practice.
Temperaments
Tempering out this comma alone in the 7-limit leads to the rank-3 canopic temperament. It is tempered out in rank-2 temperaments such as miracle, octoid, semisept, grendel, kwai, pluto, and mirkat, which comprise the rank-2 canopic clan.
See Canopic clan for a collection of rank-2 temperaments where it is tempered out.
Etymology
Canopic and canopus are named after the 3.5.7-subgroup temperament canopus, following a convention of naming tritave-based regular temperaments after stars.
The name mirkwai was given by Gene Ward Smith in 2005 as a contraction of miracle and kwai[1]. Not widely accepted, it is effectively deprecated by 2026.
The name small BP diesis was given in [2].