Archytas family
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- This revision was by author genewardsmith and made on 2010-09-27 20:34:28 UTC.
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Original Wikitext content:
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 7-limit minimax [|1 0 0 0>, |2 1/3 0 -1/3>, |2 -2/3 1 -1/3>, |2 -2/3 0 2/3>] Eigenmonzos: 2, 6/5, 7/5 9-limit minimax [|1 0 0 0>, |3/2 1/2 0 -1/4>, |3/2 -1/2 1 -1/4>, |3 -1 0 1/2>] Eigenmonzos: 2, 6/5, 9/7 Lattice basis: 3/2 length 1.0508 5/4 length 2.3219 Angle(3/2, 5/4) = 90 degrees Map to lattice: [<0 1 0 -2|, <0 0 1 0|] Map: [<1 0 0 6|, <0 1 0 -2|, <0 0 1 0|] Generators: 2, 3, 5 Edos: 10, 12, 15, 22, 27, 37, 49, 59 ==11 limit children== ===Ares=== Commas: 64/63, 100/99 Minimax tuning [|1 0 0 0 0>, |3/2 1/2 0 -1/4 0>, |2 0 0 -1/2 1/2>, |3 -1 0 1/2 0>, |3 -1 0 -1/2 1>] Eigenmonzos: 2, 11/9, 9/7 Map: [<1 0 0 6 2|, <0 1 0 -2 -2|, <0 0 1 0 2|] Generators: 2, 3, 5 Edos: 12, 15, 22, 37, 49
Original HTML content:
<html><head><title>Archytas family</title></head><body>Archytas temperament tempers out 64/63, and thereby identifies the otonal tetrad with the dominant seventh chord, which is familiar from <a class="wiki_link" href="/12edo">12edo</a> and also a feature of <a class="wiki_link" href="/22edo">22edo</a> and <a class="wiki_link" href="/27edo">27edo</a>.<br /> <br /> Comma: 64/63<br /> <br /> 7-limit minimax<br /> [|1 0 0 0>, |2 1/3 0 -1/3>, <br /> |2 -2/3 1 -1/3>, |2 -2/3 0 2/3>]<br /> Eigenmonzos: 2, 6/5, 7/5<br /> <br /> 9-limit minimax<br /> [|1 0 0 0>, |3/2 1/2 0 -1/4>, <br /> |3/2 -1/2 1 -1/4>, |3 -1 0 1/2>]<br /> Eigenmonzos: 2, 6/5, 9/7<br /> <br /> Lattice basis: 3/2 length 1.0508 5/4 length 2.3219<br /> Angle(3/2, 5/4) = 90 degrees<br /> Map to lattice: [<0 1 0 -2|, <0 0 1 0|]<br /> <br /> Map: [<1 0 0 6|, <0 1 0 -2|, <0 0 1 0|]<br /> Generators: 2, 3, 5<br /> Edos: 10, 12, 15, 22, 27, 37, 49, 59<br /> <br /> <!-- ws:start:WikiTextHeadingRule:0:<h2> --><h2 id="toc0"><a name="x-11 limit children"></a><!-- ws:end:WikiTextHeadingRule:0 -->11 limit children</h2> <br /> <!-- ws:start:WikiTextHeadingRule:2:<h3> --><h3 id="toc1"><a name="x-11 limit children-Ares"></a><!-- ws:end:WikiTextHeadingRule:2 -->Ares</h3> Commas: 64/63, 100/99<br /> <br /> Minimax tuning<br /> [|1 0 0 0 0>, |3/2 1/2 0 -1/4 0>, <br /> |2 0 0 -1/2 1/2>, |3 -1 0 1/2 0>, <br /> |3 -1 0 -1/2 1>]<br /> Eigenmonzos: 2, 11/9, 9/7<br /> <br /> Map: [<1 0 0 6 2|, <0 1 0 -2 -2|, <0 0 1 0 2|]<br /> Generators: 2, 3, 5<br /> Edos: 12, 15, 22, 37, 49</body></html>