9/5

Revision as of 02:56, 26 September 2016 by Wikispaces>xenwolf (**Imported revision 593277538 - Original comment: **)

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This revision was by author xenwolf and made on 2016-09-26 02:56:08 UTC.
The original revision id was 593277538.
The revision comment was:

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Original Wikitext content:

**9/5**
|0 2 -1>
1017.5963 cents
[[media type="file" key="jid_9_5_pluck_adu_dr220.mp3" width="240" height="20"]] [[file:xenharmonic/jid_9_5_pluck_adu_dr220.mp3|sound sample]]

**9/5** is a treated as a consonance in [[5-limit]] just intonation, forming a part of such chords such as the 1-6/5-3/2-9/5 minor seventh chord, and the supermajor tetrad, 1-9/7-3/2-9/5 in the 7-limit.

Coincidentally, the ratio between a common "alternative" tuning frequency (A432) and the most common AC electrical frequency (60hz) is exactly 36/5, two octaves above 9/5. This is notably a more consonant interval than the 11/6 formed by the more common tuning frequency of A440, which may lead to a noticeable improvement in consonance when electrically powered instruments or amplifiers are interfered with by AC power.

Original HTML content:

<html><head><title>9_5</title></head><body><strong>9/5</strong><br />
|0 2 -1&gt;<br />
1017.5963 cents<br />
<!-- ws:start:WikiTextMediaRule:0:&lt;img src=&quot;http://www.wikispaces.com/site/embedthumbnail/file-audio/jid_9_5_pluck_adu_dr220.mp3?h=20&amp;w=240&quot; class=&quot;WikiMedia WikiMediaFile&quot; id=&quot;wikitext@@media@@type=&amp;quot;file&amp;quot; key=&amp;quot;jid_9_5_pluck_adu_dr220.mp3&amp;quot; width=&amp;quot;240&amp;quot; height=&amp;quot;20&amp;quot;&quot; title=&quot;Local Media File&quot;height=&quot;20&quot; width=&quot;240&quot;/&gt; --><embed src="/s/mediaplayer.swf" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" quality="high" width="240" height="20" wmode="transparent" flashvars="file=http%253A%252F%252Fxenharmonic.wikispaces.com%252Ffile%252Fview%252Fjid_9_5_pluck_adu_dr220.mp3?file_extension=mp3&autostart=false&repeat=false&showdigits=true&showfsbutton=false&width=240&height=20"></embed><!-- ws:end:WikiTextMediaRule:0 --> <a href="http://xenharmonic.wikispaces.com/file/view/jid_9_5_pluck_adu_dr220.mp3/513184340/jid_9_5_pluck_adu_dr220.mp3" onclick="ws.common.trackFileLink('http://xenharmonic.wikispaces.com/file/view/jid_9_5_pluck_adu_dr220.mp3/513184340/jid_9_5_pluck_adu_dr220.mp3');">sound sample</a><br />
<br />
<strong>9/5</strong> is a treated as a consonance in <a class="wiki_link" href="/5-limit">5-limit</a> just intonation, forming a part of such chords such as the 1-6/5-3/2-9/5 minor seventh chord, and the supermajor tetrad, 1-9/7-3/2-9/5 in the 7-limit.<br />
<br />
Coincidentally, the ratio between a common &quot;alternative&quot; tuning frequency (A432) and the most common AC electrical frequency (60hz) is exactly 36/5, two octaves above 9/5. This is notably a more consonant interval than the 11/6 formed by the more common tuning frequency of A440, which may lead to a noticeable improvement in consonance when electrically powered instruments or amplifiers are interfered with by AC power.</body></html>