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Archytas family: Difference between revisions

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**Imported revision 165809979 - Original comment: **
 
- CTE & POTE tunings
 
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<h2>IMPORTED REVISION FROM WIKISPACES</h2>
{{Technical data page}}
This is an imported revision from Wikispaces. The revision metadata is included below for reference:<br>
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.  
: This revision was by author [[User:genewardsmith|genewardsmith]] and made on <tt>2010-09-27 16:49:13 UTC</tt>.<br>
: The original revision id was <tt>165809979</tt>.<br>
: The revision comment was: <tt></tt><br>
The revision contents are below, presented both in the original Wikispaces Wikitext format, and in HTML exactly as Wikispaces rendered it.<br>
<h4>Original Wikitext content:</h4>
<div style="width:100%; max-height:400pt; overflow:auto; background-color:#f8f9fa; border: 1px solid #eaecf0; padding:0em"><pre style="margin:0px;border:none;background:none;word-wrap:break-word;white-space: pre-wrap ! important" class="old-revision-html">Archytas temperament 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]].


Comma: 64/63
See [[Archytas clan]] for the rank-2 temperament without the last generator of archytas, and its various extensions.


7-limit minimax
== Archytas ==
[|1 0 0 0&gt;, |2 1/3 0 -1/3&gt;,
{{Main| Archytas and ares }}
|2 -2/3 1 -1/3&gt;, |2 -2/3 0 2/3&gt;]
Eigenmonzos: 2, 6/5, 7/5


9-limit minimax
[[Subgroup]]: 2.3.5.7
[|1 0 0 0&gt;, |3/2 1/2 0 -1/4&gt;,
|3/2 -1/2 1 -1/4&gt;, |3 -1 0 1/2&gt;]
Eigenmonzos: 2, 6/5, 9/7


Map: [&lt;1 0 0 6|, &lt;0 1 0 -2|, &lt;0 0 1 0|]
[[Comma list]]: [[64/63]]
Generators: 2, 3, 5
Edos: 10, 12, 15, 22, 27, 37, 49, 59


==11 limit children==
{{Mapping|legend=1| 1 0 0 6 | 0 1 0 -2 | 0 0 1 0 }}


===Ares===
: mapping generators: ~2, ~3, ~5
Commas: 64/63, 100/99
 
</pre></div>
[[Mapping to lattice]]: [{{val| 0 1 0 -2 }}, {{val| 0 0 1 0 }}]
<h4>Original HTML content:</h4>
 
<div style="width:100%; max-height:400pt; overflow:auto; background-color:#f8f9fa; border: 1px solid #eaecf0; padding:0em"><pre style="margin:0px;border:none;background:none;word-wrap:break-word;width:200%;white-space: pre-wrap ! important" class="old-revision-html">&lt;html&gt;&lt;head&gt;&lt;title&gt;Archytas family&lt;/title&gt;&lt;/head&gt;&lt;body&gt;Archytas temperament tempers out 64/63, and thereby identifies the otonal tetrad with the dominant seventh chord, which is familiar from &lt;a class="wiki_link" href="/12edo"&gt;12edo&lt;/a&gt; and also a feature of &lt;a class="wiki_link" href="/22edo"&gt;22edo&lt;/a&gt; and &lt;a class="wiki_link" href="/27edo"&gt;27edo&lt;/a&gt;.&lt;br /&gt;
Lattice basis:
&lt;br /&gt;
: 3/2 length = 1.0508, 5/4 length = 2.3219
Comma: 64/63&lt;br /&gt;
: Angle (3/2, 5/4) = 90 degrees
&lt;br /&gt;
 
7-limit minimax&lt;br /&gt;
[[Optimal tuning]]s:
[|1 0 0 0&amp;gt;, |2 1/3 0 -1/3&amp;gt;, &lt;br /&gt;
* [[WE]]: ~2 = 1196.9552{{c}}, ~3/2 = 707.5215{{c}}, ~5/4 = 392.3765{{c}}
|2 -2/3 1 -1/3&amp;gt;, |2 -2/3 0 2/3&amp;gt;]&lt;br /&gt;
: [[error map]]: {{val| -3.045 +2.522 -0.027 +3.952 }}
Eigenmonzos: 2, 6/5, 7/5&lt;br /&gt;
* [[CWE]]: ~2 = 1200.0000{{c}}, ~3/2 = 709.3901{{c}}, ~5/4 = 391.5995{{c}}
&lt;br /&gt;
: error map: {{val| 0.000 +7.435 +5.286 +12.394 }}
9-limit minimax&lt;br /&gt;
 
[|1 0 0 0&amp;gt;, |3/2 1/2 0 -1/4&amp;gt;, &lt;br /&gt;
[[Minimax tuning]]:  
|3/2 -1/2 1 -1/4&amp;gt;, |3 -1 0 1/2&amp;gt;]&lt;br /&gt;
* [[7-odd-limit]]
Eigenmonzos: 2, 6/5, 9/7&lt;br /&gt;
: {{monzo list| 1 0 0 0 | 2 1/3 0 -1/3 | 2 -2/3 1 -1/3 | 2 -2/3 0 2/3 }}
&lt;br /&gt;
: [[Eigenmonzo basis|unchanged-interval (eigenmonzo) basis]]: 2.5/3.7/3
Map: [&amp;lt;1 0 0 6|, &amp;lt;0 1 0 -2|, &amp;lt;0 0 1 0|]&lt;br /&gt;
* [[9-odd-limit]]
Generators: 2, 3, 5&lt;br /&gt;
: {{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 }}
Edos: 10, 12, 15, 22, 27, 37, 49, 59&lt;br /&gt;
: [[Eigenmonzo basis|unchanged-interval (eigenmonzo) basis]]: 2.5/3.9/7
&lt;br /&gt;
 
&lt;!-- ws:start:WikiTextHeadingRule:0:&amp;lt;h2&amp;gt; --&gt;&lt;h2 id="toc0"&gt;&lt;a name="x-11 limit children"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:0 --&gt;11 limit children&lt;/h2&gt;
{{Optimal ET sequence|legend=1| 5, 7, 10, 12, 15, 22, 27, 39d, 49, 88bcd, 110bcdd }}
&lt;br /&gt;
 
&lt;!-- ws:start:WikiTextHeadingRule:2:&amp;lt;h3&amp;gt; --&gt;&lt;h3 id="toc1"&gt;&lt;a name="x-11 limit children-Ares"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:2 --&gt;Ares&lt;/h3&gt;
[[Badness]] (Sintel): 0.435
Commas: 64/63, 100/99&lt;/body&gt;&lt;/html&gt;</pre></div>
 
Scales: [[archytas12]], [[archytas12synch]]
 
== Ares ==
{{Main| Archytas and ares }}
{{See also| Ptolemismic clan #Ares }}
 
[[Subgroup]]: 2.3.5.7.11
 
[[Comma list]]: 64/63, 100/99
 
{{Mapping|legend=1| 1 0 0 6 2 | 0 1 0 -2 -2 | 0 0 1 0 2 }}
 
[[Mapping to lattice]]: [{{val| 0 1 1 -2 0 }}, {{val| 0 0 -1 0 -2 }}]
 
Lattice basis:
: 3/2 length = 0.9878, 6/5 length = 1.4312
: 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]]:
* [[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 }}]
: [[Eigenmonzo basis|unchanged-interval (eigenmonzo) basis]]: 2.11/9.9/7
 
{{Optimal ET sequence|legend=1| 12, 15, 22, 27e, 34d, 49, 181bbcddeeee }}
 
[[Badness]] (Sintel): 0.563
 
Scales: [[ares12]]
 
== Vulcan ==
[[Subgroup]]: 2.3.5.7.11
 
[[Comma list]]: 56/55, 64/63
 
{{Mapping|legend=1| 1 0 0 6 9 | 0 1 0 -2 -2 | 0 0 1 0 -1 }}
 
[[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 }}
 
{{Optimal ET sequence|legend=1| 5, 10, 12, 15, 27e }}
 
[[Badness]] (Sintel): 0.693
 
[[Category:Temperament families]]
[[Category:Pages with mostly numerical content]]
[[Category:Archytas family| ]] <!-- main article -->
[[Category:Rank 3]]
Retrieved from "https://en.xen.wiki/w/Archytas_family"