1029/1000: Difference between revisions

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{{Infobox Interval
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| Name = Keega
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'''1029/1000''', the '''keega''', is a [[medium comma|medium]] [[7-limit]] [[comma]] measuring about 49.5 [[cent]]s. It is the difference between a stack of three [[10/7]]'s and a perfect twelfth ([[3/1]]), or between a stack of three [[7/5]]'s and a perfect eleventh ([[8/3]]), and arises from [[10/7]] being a convergent in the continued fraction of <math>\sqrt[3]{3}</math>.


'''1029/1000''', the '''keega''', is a [[medium comma|medium]] [[7-limit]] [[comma]] measuring about 49.5 [[cent]]s. It is the difference between a stack of three [[7/5]]'s and a perfect eleventh ([[8/3]]), and arises from [[10/7]] being a convergent in the continued fraction of <math>\sqrt[3]{3}</math>.
It factors into simpler commas as ([[49/48]])⋅([[126/125]]) and ([[81/80]])⋅([[686/675]]).  


== Temperaments ==
== Temperaments ==
Tempering out this comma in the 7-limit leads to the rank-3 [[keegic]] temperament. See [[keegic temperaments]] for a collection of rank-2 temperaments where it is tempered out.  
[[Tempering out]] this comma in the 7-limit leads to the rank-3 [[keegic]] temperament. See [[Keegic temperaments]] for a collection of rank-2 temperaments where it is tempered out.  


== Etymology ==
== Etymology ==
The name ''keega'' was given by [[Gene Ward Smith]] in 2005. It is a contraction of ''[[keemun]]'' and ''gawel'', although ''gawel'' was later renamed to ''[[liese]]''<ref>[https://yahootuninggroupsultimatebackup.github.io/tuning-math/topicId_12900.html Yahoo! Tuning Group | ''Seven limit comma names from pairs of temperament names'']</ref>.  
The name ''keega'' was given by [[Gene Ward Smith]] in 2005. It is a contraction of ''[[keemun]]'' and ''gawel'', although ''gawel'' was later renamed to ''[[liese]]''<ref>[https://yahootuninggroupsultimatebackup.github.io/tuning-math/topicId_12900.html Yahoo! Tuning Group | ''Seven limit comma names from pairs of temperament names'']</ref>.  


== Notes ==
== References ==


[[Category:Keegic]]
[[Category:Keegic]]
[[Category:Commas named for their regular temperament properties]]
[[Category:Commas named by combining multiple temperament names]]