Septischisma: Difference between revisions

m FloraC moved page Garischisma to Septischisma
Gary derives gary comma. More clarifications. Recategorize
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{{Infobox Interval
{{Infobox Interval
| Ratio = 33554432/33480783
| Ratio = 33554432/33480783
| Name = septischisma, garysma
| Name = septischisma, gary comma
| Color name = ssr2, sasaru 2nd,<br>ssrM, sasaruma
| Color name = ssr2, sasaru 2nd,<br>ssrM, sasaruma
| Comma = yes
| Comma = yes
}}
}}
 
The '''septischisma''', a.k.a. '''gary comma''', is a very [[small comma|small]] [[7-limit]] [[comma]] measuring about 3.80 [[cent]]s. It can be considered the septimal counterpart of the [[schisma]]: whereas the schisma is the difference between the [[Pythagorean comma]] and the [[syntonic comma]], the septischisma is the difference between the [[septimal comma]] and the Pythagorean comma. Equivalently, it can be described as the amount by which a stack of two [[Pythagorean apotome]]s falls short of a [[8/7|septimal whole tone]]. It is also the difference between the [[aberschisma]] and the schisma in the full 7-limit.  
The '''septischisma''' or '''garysma''' is a very [[small comma|small]] [[7-limit]] [[comma]] measuring about 3.80 [[cent]]s. It can be considered the septimal counterpart of the [[schisma]]: whereas the schisma is the difference between the [[Pythagorean comma]] and the [[syntonic comma]], the garischisma is the difference between the [[septimal comma]] and the Pythagorean comma. Equivalently, it can be described as the amount by which a stack of two [[2187/2048|apotomes]] falls short of a [[8/7|septimal whole tone]]. It is also the difference between the [[aberschisma]] and the schisma in the full 7-limit.  


It factors into the following [[11-limit|11-]] and [[13-limit]] commas:  
It factors into the following [[11-limit|11-]] and [[13-limit]] commas:  
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== Temperaments ==
== Temperaments ==
[[Tempering out]] this comma in the full 7-limit leads to the rank-3 '''septischismic''' temperament, or in the [[2.3.7 subgroup]], the rank-2 '''gary''' temperament. See [[Garischismic family]] for the [[temperament families and clans|family]] of rank-3 temperaments where it is tempered out. See [[Garischismic clan]] for the [[temperament families and clans|clan]] of rank-2 temperaments where it is tempered out.  
[[Tempering out]] this comma in the full 7-limit leads to the rank-3 [[septischismic]] temperament, or in the [[2.3.7 subgroup]], the rank-2 [[gary]] temperament.  
 
See [[Septischismic family]] for the [[temperament families and clans|family]] of rank-3 temperaments where it is tempered out. See [[Septischismic clan]] for the [[temperament families and clans|clan]] of rank-2 temperaments where it is tempered out.  


== Etymology ==
== Etymology ==
Its name used to be ''garischisma'', which comes from the temperament [[garibaldi]] and the schisma, as it is a similarly sized interval that alongside it, defines garibaldi. This etymology partly lingers in the subgroup temperament gary. The current name is trivial.
The name of this comma used to be ''garischisma'', from the temperament [[garibaldi]] and the schisma, as it is a similarly sized interval that alongside it, defines garibaldi. This name partly lingers in the subgroup temperament ''gary'' and a number of other rank-2 temperaments.  
 
The current name is a trivial contraction of ''septimal schisma'' into one word.  


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