Marvel family

Revision as of 23:37, 25 July 2010 by Wikispaces>genewardsmith (**Imported revision 154004189 - Original comment: **)

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This revision was by author genewardsmith and made on 2010-07-25 23:37:45 UTC.
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Original Wikitext content:

The head of the marvel family is marvel, which tempers out 225/224, the septimal kleisma or marvel comma. Marvel has a [[Minkowski basis|Minkowski generator basis]] of [2, 15/4, 3/2], converting that to a normal list gives [2, 3, 5] which also works as a basis; hence a [[Harmonic Limit|5-limit]] scale can be converted to marvel simply by tempering it. One way to do that, and an excellent marvel tuning, is given by [[197edo]]. Another is 1/4-kleismic tuning, where the fifth is flattened by (225/224)^(1/4), 1/4 of a septimal kleisma. This leads to just 5/4 and 7/4 intervals,with other elements of the 7-limit tonality diamond sharp or flat by 1/4 septimal kleisma, or 1.93 cents. 

==Eleven limit children==
The second comma of the [[Normal lists|normal comma list]] defines which 11-limit family member we are looking at. Adding 4125/4096 gives unidecimal marvel, 91125/90112 gives prodigy, 5632/5625 minerva and 243/242 spectacle.

Original HTML content:

<html><head><title>Marvel family</title></head><body>The head of the marvel family is marvel, which tempers out 225/224, the septimal kleisma or marvel comma. Marvel has a <a class="wiki_link" href="/Minkowski%20basis">Minkowski generator basis</a> of [2, 15/4, 3/2], converting that to a normal list gives [2, 3, 5] which also works as a basis; hence a <a class="wiki_link" href="/Harmonic%20Limit">5-limit</a> scale can be converted to marvel simply by tempering it. One way to do that, and an excellent marvel tuning, is given by <a class="wiki_link" href="/197edo">197edo</a>. Another is 1/4-kleismic tuning, where the fifth is flattened by (225/224)^(1/4), 1/4 of a septimal kleisma. This leads to just 5/4 and 7/4 intervals,with other elements of the 7-limit tonality diamond sharp or flat by 1/4 septimal kleisma, or 1.93 cents. <br />
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<!-- ws:start:WikiTextHeadingRule:0:&lt;h2&gt; --><h2 id="toc0"><a name="x-Eleven limit children"></a><!-- ws:end:WikiTextHeadingRule:0 -->Eleven limit children</h2>
The second comma of the <a class="wiki_link" href="/Normal%20lists">normal comma list</a> defines which 11-limit family member we are looking at. Adding 4125/4096 gives unidecimal marvel, 91125/90112 gives prodigy, 5632/5625 minerva and 243/242 spectacle.</body></html>