Father family: Difference between revisions

-baba, -walid (addressed in the respective clans)
+link to main article of father; -quint (addressed in 5th-octave temps page)
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The '''father family''' of temperaments tempers out [[16/15]], the just diatonic semitone. This equates [[4/3]] with [[5/4]], so these are "fourth-thirds", or father, temperaments.
The '''father family''' of [[Rank-2 temperament|rank-2]] [[temperament]]s [[Tempering out|tempers out]] [[16/15]], the just diatonic semitone. This equates [[4/3]] with [[5/4]], so these are "fourth-thirds", or father, temperaments. In a sense, what father is all about is using [[semisixth]]s or [[subfourth]]s and pretending that is 5-limit, and like any temperament which seems to involve pretending, father is at the edge of what can sensibly be called a temperament at all. In other words, it is an [[exotemperament]].
In a sense, what father is all about is using [[semisixth]]s or [[subfourth]]s and pretending that's 5-limit, and like any temperament which seems to involve pretending, father is at the edge of what can sensibly be called a temperament at all. In other words, it is an [[exotemperament]].


== Father ==
== Father ==
{{Main| Father }}
[[Subgroup]]: 2.3.5
[[Subgroup]]: 2.3.5


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[[Minimax tuning]]:  
[[Minimax tuning]]:  
* [[5-odd-limit]]: ~3/2 = {{monzo| 1 1/2 -1/2 }}
* [[5-odd-limit]]: ~3/2 = {{monzo| 1 1/2 -1/2 }}
: [[Eigenmonzo basis|Eigenmonzo (unchanged-interval) basis]]: 2.5/3
: [[Eigenmonzo basis|eigenmonzo (unchanged-interval) basis]]: 2.5/3


{{Optimal ET sequence|legend=1| 1, 2, 3, 5, 8, 13c, 21bcc }}
{{Optimal ET sequence|legend=1| 1, 2, 3, 5, 8, 13c, 21bcc }}
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== Septimal father ==
== Septimal father ==
{{Main| Father }}
{{See also| Trienstonic clan #Father }}
{{See also| Trienstonic clan #Father }}


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[[Minimax tuning]]:  
[[Minimax tuning]]:  
* [[7-odd-limit]]: ~3/2 = {{monzo| 1/2 0 -1/4 1/4 }}
* [[7-odd-limit]]: ~3/2 = {{monzo| 1/2 0 -1/4 1/4 }}
: [[Eigenmonzo basis|Eigenmonzo (unchanged-interval) basis]]: 2.7/5
: [[Eigenmonzo basis|eigenmonzo (unchanged-interval) basis]]: 2.7/5
* [[9-odd-limit]]: ~3/2 = {{monzo| 1 -2 0 1 }} = 14/9
* [[9-odd-limit]]: ~3/2 = {{monzo| 1 -2 0 1 }} = 14/9
: [[Eigenmonzo basis|Eigenmonzo (unchanged-interval) basis]]: 2.9/7
: [[Eigenmonzo basis|eigenmonzo (unchanged-interval) basis]]: 2.9/7


{{Optimal ET sequence|legend=1| 2d, 3d, 5, 8d, 13cd, 21bccdd }}
{{Optimal ET sequence|legend=1| 2d, 3d, 5, 8d, 13cd, 21bccdd }}
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Badness: 0.025592
Badness: 0.025592
== Quint ==
[[Subgroup]]: 2.3.5.7
[[Comma list]]: 16/15, 27/25
{{Mapping|legend=1| 5 8 12 0 | 0 0 0 1 }}
: mapping generators: ~9/8, ~7
{{Multival|legend=1| 0 0 5 0 8 12 }}
[[Optimal tuning]] ([[POTE]]): ~9/8 = 1\5, ~7/4 = 1017.903
{{Optimal ET sequence|legend=1| 5, 15ccd }}
[[Badness]]: 0.048312


[[Category:Temperament families]]
[[Category:Temperament families]]
[[Category:Father family| ]] <!-- main article -->
[[Category:Father family| ]] <!-- main article -->
[[Category:Father| ]] <!-- key article -->
[[Category:Rank 2]]
[[Category:Rank 2]]