Schismatic family: Difference between revisions
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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 | 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 | [[Optimal tuning]] ([[POTE]]): ~2 = 1\1, ~3/2 = 701.736 | ||
[[Tuning ranges]]: | [[Tuning ranges]]: | ||
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[[Badness]]: 0.004259 | [[Badness]]: 0.004259 | ||
=== | === 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| | 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 }} | ||
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 | [[Optimal tuning]] ([[POTE]]): ~2 = 1\1, ~3/2 = 702.085 | ||
[[Minimax tuning]]: | [[Minimax tuning]]: | ||