Archytas family: Difference between revisions

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- CTE & POTE tunings
 
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The '''archytas family''' of temperaments [[tempering out|tempers out]] [[64/63]], and thereby identifies the [[otonal]] [[tetrad]] with the [[dominant seventh chord]], which is familiar from [[12edo]] and also a feature of [[22edo]] and [[27edo]].
{{Technical data page}}
The '''archytas family''' of [[rank-3 temperament|rank-3]] [[regular temperament|temperaments]] [[tempering out|tempers out]] [[64/63]]. The head of this family, archytas, tempers out 64/63 alone in the full 7-limit, so it has the same 2.3.7-[[subgroup]] structure as [[archy]] but giving [[prime harmonic|prime]] [[5/1|5]] an independent generator.  


= Archytas =
See [[Archytas clan]] for the rank-2 temperament without the last generator of archytas, and its various extensions.


Period: 1\1
== Archytas ==
{{Main| Archytas and ares }}


Optimal ([[POTE]]) generators: ~3/2 = 709.3213, ~5/4 = 393.3747
[[Subgroup]]: 2.3.5.7


EDO generators: [[15edo|(9, 5)\15]], [[22edo|(13, 7)\22]], [[27edo|(16, 9)\27]]
[[Comma list]]: [[64/63]]


Scales: [[archytas12]], [[archytas12synch]]
{{Mapping|legend=1| 1 0 0 6 | 0 1 0 -2 | 0 0 1 0 }}
 
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<div style="line-height:1.6;">Technical data</div>
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[[Comma list]]: 64/63
 
Mapping: [{{val| 1 0 0 6 }}, {{val| 0 1 0 -2 }}, {{val| 0 0 1 0 }}]


Mapping [[generator]]s: ~2, ~3, ~5
: mapping generators: ~2, ~3, ~5


Map to lattice: [{{val| 0 1 0 -2 }}, {{val| 0 0 1 0 }}]
[[Mapping to lattice]]: [{{val| 0 1 0 -2 }}, {{val| 0 0 1 0 }}]


Lattice basis:  
Lattice basis:  
Line 27: Line 21:
: Angle (3/2, 5/4) = 90 degrees
: Angle (3/2, 5/4) = 90 degrees


Minimax tuning:  
[[Optimal tuning]]s:
* [[WE]]: ~2 = 1196.9552{{c}}, ~3/2 = 707.5215{{c}}, ~5/4 = 392.3765{{c}}
: [[error map]]: {{val| -3.045 +2.522 -0.027 +3.952 }}
* [[CWE]]: ~2 = 1200.0000{{c}}, ~3/2 = 709.3901{{c}}, ~5/4 = 391.5995{{c}}
: error map: {{val| 0.000 +7.435 +5.286 +12.394 }}
 
[[Minimax tuning]]:  
* [[7-odd-limit]]
* [[7-odd-limit]]
: [{{monzo| 1 0 0 0 }}, {{monzo| 2 1/3 0 -1/3 }}, {{monzo| 2 -2/3 1 -1/3 }}, {{monzo| 2 -2/3 0 2/3 }}]
: {{monzo list| 1 0 0 0 | 2 1/3 0 -1/3 | 2 -2/3 1 -1/3 | 2 -2/3 0 2/3 }}
: [[Eigenmonzo]]s: 2, 6/5, 7/5
: [[Eigenmonzo basis|unchanged-interval (eigenmonzo) basis]]: 2.5/3.7/3
* [[9-odd-limit]]
* [[9-odd-limit]]
: [{{monzo| 1 0 0 0 }}, {{monzo| 3/2 1/2 0 -1/4 }}, {{monzo| 3/2 -1/2 1 -1/4 }}, {{monzo| 3 -1 0 1/2 }}]
: {{monzo list| 1 0 0 0 | 3/2 1/2 0 -1/4 | 3/2 -1/2 1 -1/4 | 3 -1 0 1/2 }}
: [[Eigenmonzo]]s: 2, 6/5, 9/7
: [[Eigenmonzo basis|unchanged-interval (eigenmonzo) basis]]: 2.5/3.9/7


{{Val list|legend=1| 5, 7, 10, 12, 15, 22, 27, 49 }}
{{Optimal ET sequence|legend=1| 5, 7, 10, 12, 15, 22, 27, 39d, 49, 88bcd, 110bcdd }}


</div></div>
[[Badness]] (Sintel): 0.435


; Music
Scales: [[archytas12]], [[archytas12synch]]
* Chris Vaisvil - [http://micro.soonlabel.com/hobbit_scales/daily201031--hobbit-archytas12.mp3 12 archytas hobbits with ale]
* Joel Taylor - [http://micro.soonlabel.com/gene_ward_smith/Others/Taylor/Archytas12%20sync%20Study%203.mp3 Portrait of a Tragedy (Death of a Son) - Archytas12 sync Study 3]


= Ares =
== Ares ==
{{Main| Archytas and ares }}
{{See also| Ptolemismic clan #Ares }}


Period: 1\1
[[Subgroup]]: 2.3.5.7.11
 
Optimal ([[POTE]]) generators: ~3/2 = 709.6869, ~5/4 = 391.4507
 
EDO generators: [[15edo|(9, 5)\15]], [[22edo|(13, 7)\22]], [[27edo|(16, 9)\27]]
 
Scales: [[ares12]]
 
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<div style="line-height:1.6;">Technical data</div>
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[[Comma list]]: 64/63, 100/99
[[Comma list]]: 64/63, 100/99


Mapping: [{{val| 1 0 0 6 2 }}, {{val| 0 1 0 -2 -2 }}, {{val| 0 0 1 0 2 }}]
{{Mapping|legend=1| 1 0 0 6 2 | 0 1 0 -2 -2 | 0 0 1 0 2 }}


Mapping [[generator]]s: ~2, ~3, ~5
[[Mapping to lattice]]: [{{val| 0 1 1 -2 0 }}, {{val| 0 0 -1 0 -2 }}]
 
Map to lattice: [{{val| 0 1 1 -2 0 }}, {{val| 0 0 -1 0 -2 }}]


Lattice basis:  
Lattice basis:  
: 3/2 length = 0.9878, 6/5 length = 1.4312
: 3/2 length = 0.9878, 6/5 length = 1.4312
: Angle (3/2, 6/5) = 75.0475 degrees
: Angle (3/2, 6/5) = 75.0475 degrees
[[Optimal tuning]]s:
* [[WE]]: ~2 = 1197.0279{{c}}, ~3/2 = 707.9291{{c}}, ~5/4 = 390.4812{{c}}
: [[error map]]: {{val| -2.972 +3.002 -1.777 +3.427 +1.898 }}
* [[CWE]]: ~2 = 1200.0000{{c}}, ~3/2 = 709.6947{{c}}, ~5/4 = 390.0248{{c}}
: error map: {{val| 0.000 +7.740 +3.711 +11.785 +9.342 }}


[[Minimax tuning]]:  
[[Minimax tuning]]:  
* [[11-odd-limit]]
* [[11-odd-limit]]
: [{{monzo| 1 0 0 0 0 }}, {{monzo| 3/2 1/2 0 -1/4 0 }}, {{monzo| 2 0 0 -1/2 1/2 }}, {{monzo| 3 -1 0 1/2 0 }}, {{monzo| 3 -1 0 -1/2 1 }}]
: [{{monzo| 1 0 0 0 0 }}, {{monzo| 3/2 1/2 0 -1/4 0 }}, {{monzo| 2 0 0 -1/2 1/2 }}, {{monzo| 3 -1 0 1/2 0 }}, {{monzo| 3 -1 0 -1/2 1 }}]
: [[Eigenmonzo]]s: 2, 11/9, 9/7
: [[Eigenmonzo basis|unchanged-interval (eigenmonzo) basis]]: 2.11/9.9/7


{{Val list|legend=1| 12, 15, 22, 27e, 34d, 49 }}
{{Optimal ET sequence|legend=1| 12, 15, 22, 27e, 34d, 49, 181bbcddeeee }}


Badness: 0.469 × 10<sup>-3</sup>
[[Badness]] (Sintel): 0.563


</div></div>
Scales: [[ares12]]
 
= Vulcan =
 
Period: 1\1
 
Optimal ([[POTE]]) generators: ~3/2 = 710.9720, ~5/4 = 401.2699
 
EDO generators: [[10edo|(6, 3)\10]], [[15edo|(9, 5)\15]], [[17edo|(10, 6)\17]]
 
Scales:
 
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<div style="line-height:1.6;">Technical data</div>
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Comma list: 56/55, 64/63
== Vulcan ==
[[Subgroup]]: 2.3.5.7.11


Mapping: [{{val| 1 0 0 6 9 }}, {{val| 0 1 0 -2 -2 }}, {{val| 0 0 1 0 -1 }}]
[[Comma list]]: 56/55, 64/63


Mapping generators: ~2, ~3, ~5
{{Mapping|legend=1| 1 0 0 6 9 | 0 1 0 -2 -2 | 0 0 1 0 -1 }}


{{Val list|legend=1| 5, 10, 12, 15, 27e }}
[[Optimal tuning]]s:
* [[CWE]]: ~2 = 1195.4265{{c}}, ~3/2 = 708.2623{{c}}, ~5/4 = 399.7405{{c}}
: [[error map]]: {{val| -4.573 +1.734 +4.280 -3.644 +9.550 }}
* [[CWE]]: ~2 = 1200.0000{{c}}, ~3/2 = 711.5280{{c}}, ~5/4 = 400.4798{{c}}
: error map: {{val| 0.000 +9.573 +14.166 +8.118 +25.146 }}


Badness: 0.577 × 10<sup>-3</sup>
{{Optimal ET sequence|legend=1| 5, 10, 12, 15, 27e }}


</div></div>
[[Badness]] (Sintel): 0.693


[[Category:Theory]]
[[Category:Temperament families]]
[[Category:Temperament family]]
[[Category:Pages with mostly numerical content]]
[[Category:Archytas]]
[[Category:Archytas family| ]] <!-- main article -->
[[Category:Rank 3]]
[[Category:Rank 3]]