Kees semi-height

Revision as of 10:42, 30 December 2013 by Wikispaces>genewardsmith (**Imported revision 479870430 - Original comment: **)

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This revision was by author genewardsmith and made on 2013-12-30 10:42:25 UTC.
The original revision id was 479870430.
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Original Wikitext content:

Given a ratio of positive integers p/q, the //Kees height// is found by first removing factors of two and all common factors from p/q, producing a ratio a/b of relatively prime odd positive integers. Then kees(p/q) = kees(a/b) = max(a, b). The Kees "expressibility" is then the logarithm base two of the Kees height. The set of JI intervals with kees height less than or equal to an odd integer q comprises the [[Odd limit|q odd limit]]

The point of kees height is to serve as a metric/height on [[Pitch class|JI pitch classes]] corresponding to [[Benedetti height]] on pitches. The measure was proposed by [[Kees van Prooijen]].

[[http://www.kees.cc/tuning/perbl.html|Kees tuning pages]]

== Examples ==
||= **interval** ||= **kees height** ||
||= 5/3 ||= 5 ||
||= 4/3 ||= 3 ||
||= 2/1 ||= 1 ||

Original HTML content:

<html><head><title>Kees Height</title></head><body>Given a ratio of positive integers p/q, the <em>Kees height</em> is found by first removing factors of two and all common factors from p/q, producing a ratio a/b of relatively prime odd positive integers. Then kees(p/q) = kees(a/b) = max(a, b). The Kees &quot;expressibility&quot; is then the logarithm base two of the Kees height. The set of JI intervals with kees height less than or equal to an odd integer q comprises the <a class="wiki_link" href="/Odd%20limit">q odd limit</a><br />
<br />
The point of kees height is to serve as a metric/height on <a class="wiki_link" href="/Pitch%20class">JI pitch classes</a> corresponding to <a class="wiki_link" href="/Benedetti%20height">Benedetti height</a> on pitches. The measure was proposed by <a class="wiki_link" href="/Kees%20van%20Prooijen">Kees van Prooijen</a>.<br />
<br />
<a class="wiki_link_ext" href="http://www.kees.cc/tuning/perbl.html" rel="nofollow">Kees tuning pages</a><br />
<br />
<!-- ws:start:WikiTextHeadingRule:0:&lt;h2&gt; --><h2 id="toc0"><a name="x-Examples"></a><!-- ws:end:WikiTextHeadingRule:0 --> Examples </h2>


<table class="wiki_table">
    <tr>
        <td style="text-align: center;"><strong>interval</strong><br />
</td>
        <td style="text-align: center;"><strong>kees height</strong><br />
</td>
    </tr>
    <tr>
        <td style="text-align: center;">5/3<br />
</td>
        <td style="text-align: center;">5<br />
</td>
    </tr>
    <tr>
        <td style="text-align: center;">4/3<br />
</td>
        <td style="text-align: center;">3<br />
</td>
    </tr>
    <tr>
        <td style="text-align: center;">2/1<br />
</td>
        <td style="text-align: center;">1<br />
</td>
    </tr>
</table>

</body></html>