25/21: Difference between revisions

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<h2>IMPORTED REVISION FROM WIKISPACES</h2>
{{Infobox Interval
This is an imported revision from Wikispaces. The revision metadata is included below for reference:<br>
| Name = quasi-tempered minor third
: This revision was by author [[User:genewardsmith|genewardsmith]] and made on <tt>2012-02-12 20:42:58 UTC</tt>.<br>
| Color name = ryy2, ruyoyo 2nd
: The original revision id was <tt>301054486</tt>.<br>
| Sound = jid_25_21_pluck_adu_dr220.mp3
: 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>
'''25/21''', the '''quasi-tempered minor third''', is the interval between [[6/5]] and [[10/7]], and also [[7/5]] and [[5/3]]. It is [[126/125]] flat of [[6/5]], and tempering 126/125 out makes the 1-6/5-10/7 triad into a [[diminished triad]] where two minor thirds make up a [[tritone]]. It is extremely close to 3 steps of [[12edo]] (300 cents).
<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">25/21, the quasi-tempered minor third, is the interval between [[6_5|6/5]] and [[10_7|10/7], and also [[7_5|7/5]] and [[5_3|5/3]]. It is 126/125 flat of 6/5, and tempering 126/125 out makes the 1-6/5-10/7 triad into a diminished triad where two minor thirds make up a tritone.</pre></div>
25/21 is also an important interval in the [[Bohlen-Pierce scale]], where it represents a "BP whole tone", i.e. the large step in the [[4L 5s (3/1-equivalent)|Lambda scale]].
<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;25_21&lt;/title&gt;&lt;/head&gt;&lt;body&gt;25/21, the quasi-tempered minor third, is the interval between &lt;a class="wiki_link" href="/6_5"&gt;6/5&lt;/a&gt; and &lt;a class="wiki_link" href="/10_7"&gt;10/7], and also [[7_5|7/5&lt;/a&gt; and &lt;a class="wiki_link" href="/5_3"&gt;5/3&lt;/a&gt;. It is 126/125 flat of 6/5, and tempering 126/125 out makes the 1-6/5-10/7 triad into a diminished triad where two minor thirds make up a tritone.&lt;/body&gt;&lt;/html&gt;</pre></div>
== See also ==
* [[42/25]] - its [[octave complement]]
* [[63/50]] - its [[fifth complement]]
* [[28/25]] – its [[fourth complement]]
* [[Gallery of just intervals]]
* [[:File:Ji-25-21-csound-foscil-220hz.mp3]] - another sound example
 
[[Category:Third]]
[[Category:Minor third]]
[[Category:Starling]]