Diminished family: Difference between revisions
- CTE & POTE tunings |
Post-move cleanup |
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{{Technical data page}} | {{Technical data page}} | ||
The ''' | The '''diminished family''' of [[regular temperament|temperaments]] [[tempering out|tempers out]] the major diesis a.k.a. diminished comma, [[648/625]], the amount by which four [[6/5]] minor thirds exceed an [[octave]], and so identifies the minor third with the quarter-octave. Hence it has the same 300-cent 6/5-approximations as [[12edo]]. | ||
== | == Diminished == | ||
{{Main| Diminished (temperament) }} | {{Main| Diminished (temperament) }} | ||
The [[generator]] of diminished can be taken as a fifth or a semitone, and 12edo, with its excellent fifth, is an obvious tuning, though a flatter fifth might be preferred to go with the flat minor third. Its [[ploidacot]] is tetraploid monocot. | |||
[[Subgroup]]: 2.3.5 | [[Subgroup]]: 2.3.5 | ||
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[[Badness]] (Sintel): 1.11 | [[Badness]] (Sintel): 1.11 | ||
== | == Septimal diminished == | ||
{{Main| Diminished (temperament) }} | {{Main| Diminished (temperament) }} | ||
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=== Cohedim === | === Cohedim === | ||
This | This extension has been documented in Graham Breed's temperament finder as ''hemidim'', the same name as [[#Hemidim|11-limit 4e & 24 and 13-limit 4ef & 24]]. For the 11-limit 8bce & 12 temperament, ''cohedim'' arguably makes more sense. Its ploidacot is tetraploid alpha-dicot. | ||
Subgroup: 2.3.5.7.11 | Subgroup: 2.3.5.7.11 | ||
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== Hemidim == | == Hemidim == | ||
Hemidim tempers out 49/48 and may be described as the {{nowrap| 4 & 24 }} temperament. Its ploidcot is tetraploid dicot. | |||
[[Subgroup]]: 2.3.5.7 | [[Subgroup]]: 2.3.5.7 | ||
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Comma list: 49/48, 77/75, 243/242 | Comma list: 49/48, 77/75, 243/242 | ||
Mapping: {{mapping| 4 0 3 8 -2 | 0 2 2 1 5}} | Mapping: {{mapping| 4 0 3 8 -2 | 0 2 2 1 5 }} | ||
Optimal tunings: | Optimal tunings: | ||
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== Octonion == | == Octonion == | ||
It was formerly known as | Octonion tempers out 245/243, and may be described as the {{nowrap| 8d & 24 }} temperament. Its ploidacot is octoploid monocot. | ||
It was formerly known as ''semidim'' but renamed to avoid confusion with another temperament of the same name. | |||
[[Subgroup]]: 2.3.5.7 | [[Subgroup]]: 2.3.5.7 | ||
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[[Category:Temperament families]] | [[Category:Temperament families]] | ||
[[Category:Pages with mostly numerical content]] | [[Category:Pages with mostly numerical content]] | ||
[[Category: | [[Category:Diminished family| ]] <!-- main article --> | ||
[[Category:Diminished| ]] <!-- key article --> | [[Category:Diminished| ]] <!-- key article --> | ||
[[Category:Rank 2]] | [[Category:Rank 2]] |