Schismatic family: Difference between revisions

Quintaschis: review OGPV sequences
Cleanup (1/5)
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== Schismatic aka Helmholtz ==
== Schismatic aka Helmholtz ==
The 5-limit version of the temperament is a [[microtemperament]], sometimes called '''Helmholtz''', '''schismic''' or '''schismatic''', which flattens the fifth by a fraction of a schisma, but some other members of the family are less accurate. As a 5-limit system, it is far more accurate than meantone but still with manageable complexity. [[53edo|53EDO]] is a possible tuning for schismatic, but you need [[118edo|118EDO]] if you want to get the full effect. In exact analogy with 1/4 comma meantone there is also 1/8 schismatic, with pure major thirds and fifths flattened by 1/8 schisma. Since 1/8 of a schisma is 0.244 cents, this falls into the range of microtempering. You could also try 1/9 schisma, with pure minor thirds and a minutely better 5th, or 2/17 schisma, with both thirds flat by 1/17 of a schisma, although the differences would be very hard to distinguish unless using a large gamut.
The 5-limit version of the temperament is a [[microtemperament]], sometimes called '''Helmholtz''', '''schismic''' or '''schismatic''', which flattens the fifth by a fraction of a schisma, but some other members of the family are less accurate. As a 5-limit system, it is far more accurate than meantone but still with manageable complexity. [[53edo]] is a possible tuning for schismatic, but you need [[118edo]] if you want to get the full effect. In exact analogy with 1/4 comma meantone there is also 1/8 schismatic, with pure major thirds and fifths flattened by 1/8 schisma. Since 1/8 of a schisma is 0.244 cents, this falls into the range of microtempering. You could also try 1/9 schisma, with pure minor thirds and a minutely better 5th, or 2/17 schisma, with both thirds flat by 1/17 of a schisma, although the differences would be very hard to distinguish unless using a large gamut.


Subgroup: 2.3.5
[[Subgroup]]: 2.3.5


[[Comma list]]: 32805/32768
[[Comma list]]: 32805/32768
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Mapping generators: ~2, ~3
Mapping generators: ~2, ~3


[[POTE generator]]: ~3/2 = 701.736
[[Optimal tuning]] ([[POTE]]): ~2 = 1\1, ~3/2 = 701.736


[[Tuning ranges]]:  
[[Tuning ranges]]:  
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[[Badness]]: 0.004259
[[Badness]]: 0.004259


=== Seven-limit extensions ===
=== Overview to extensions ===
The second comma of the [[Normal lists #Normal interval list|normal comma list]] defines which 7-limit family member we are looking at.  
The second comma of the [[Normal lists #Normal interval list|normal comma list]] defines which 7-limit family member we are looking at.  
* Garibaldi adds [[garischisma|{{monzo|25 -14 0 -1}}]],  
* [[#Garibaldi]] adds [[garischisma|{{monzo| 25 -14 0 -1 }}]],  
* Grackle adds {{monzo|-44 26 0 1}},  
* [[#Grackle]] adds {{monzo| -44 26 0 1 }},  
* Schism adds [[64/63|{{monzo|6 -2 0 -1}}]],  
* [[#Schism]] adds [[64/63|{{monzo| 6 -2 0 -1 }}]],  
* Pontiac adds {{monzo|-59 39 0 -1}}.  
* [[#Pontiac]] adds [[nanisma|{{monzo| -59 39 0 -1 }}]].  
Those all have a fifth as generator.  
Those all have a fifth as generator.  


* Bischismic adds {{monzo|-69 40 0 2}} and has a fifth generator with a half-octave period.  
* [[#Bischismic]] adds {{monzo| -69 40 0 2 }} and has a fifth generator with a half-octave period.  
* Guiron adds [[1029/1024|{{monzo|-10 1 0 3}}]], with an 8/7 generator, three of which give the fifth.  
* [[#Guiron]] adds [[1029/1024|{{monzo| -10 1 0 3 }}]], with an 8/7 generator, three of which give the fifth.  
* Term adds {{monzo|-94 54 0 3}} with a 1/3 octave period.  
* [[#Term]] adds {{monzo| -94 54 0 3 }} with a 1/3 octave period.  
* Sesquiquartififths adds {{monzo|-35 15 0 4}} and slices the fifth in four.
* [[#Sesquiquartififths]] adds {{monzo| -35 15 0 4 }} and slices the fifth in four.


Temperaments discussed elsewhere include [[Sensamagic clan #Salsa|salsa]], [[Gamelismic clan #Guiron|guiron]] and [[Porwell temperaments #Hemischis|hemischis]]. Remarkable subgroup temperaments include [[No-sevens subgroup temperaments #Nestoria|nestoria]] and [[No-sevens subgroup temperaments #Photia|photia]].
Temperaments discussed elsewhere include
* [[Sensamagic clan #Salsa|Salsa]]
* [[Gamelismic clan #Guiron|Guiron]]
* [[Porwell temperaments #Hemischis|Hemischis]]
 
Remarkable subgroup temperaments include
* [[No-sevens subgroup temperaments #Nestoria|Nestoria]]
* [[No-sevens subgroup temperaments #Photia|Photia]]


== Garibaldi ==
== Garibaldi ==
{{main| Garibaldi temperament }}
{{Main| Garibaldi temperament }}


Subgroup: 2.3.5.7
[[Subgroup]]: 2.3.5.7


[[Comma list]]: 225/224, 3125/3087
[[Comma list]]: 225/224, 3125/3087
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{{Multival|legend=1| 1 -8 -14 -15 -25 -10 }}
{{Multival|legend=1| 1 -8 -14 -15 -25 -10 }}


[[POTE generator]]: ~3/2 = 702.085
[[Optimal tuning]] ([[POTE]]): ~2 = 1\1, ~3/2 = 702.085


[[Minimax tuning]]:
[[Minimax tuning]]: