Octave (interval region): Difference between revisions

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**Imported revision 438400306 - Original comment: **
Wikispaces>spt3125
**Imported revision 513181726 - Original comment: added audio sample**
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<h2>IMPORTED REVISION FROM WIKISPACES</h2>
<h2>IMPORTED REVISION FROM WIKISPACES</h2>
This is an imported revision from Wikispaces. The revision metadata is included below for reference:<br>
This is an imported revision from Wikispaces. The revision metadata is included below for reference:<br>
: This revision was by author [[User:xenwolf|xenwolf]] and made on <tt>2013-06-17 02:02:36 UTC</tt>.<br>
: This revision was by author [[User:spt3125|spt3125]] and made on <tt>2014-06-07 11:29:08 UTC</tt>.<br>
: The original revision id was <tt>438400306</tt>.<br>
: The original revision id was <tt>513181726</tt>.<br>
: The revision comment was: <tt></tt><br>
: The revision comment was: <tt>added audio sample</tt><br>
The revision contents are below, presented both in the original Wikispaces Wikitext format, and in HTML exactly as Wikispaces rendered it.<br>
The revision contents are below, presented both in the original Wikispaces Wikitext format, and in HTML exactly as Wikispaces rendered it.<br>
<h4>Original Wikitext content:</h4>
<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">The **octave** is one of the most basic [[Gallery of Just Intervals|intervals]] found in musical systems throughout the entire world. It is usually called the "interval of equivalence" because tones separated by an octave are perceived to have the same or similar pitch class to the average human listener. The reason for this phenomena is probably due to the strong region of attraction of low [[harmonic entropy]], or the strong amplitude of the second [[harmonic]] in most harmonic instruments.
<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">[[media type="file" key="jid_2_1_pluck_adu_dr220.mp3"]]
 
The **octave** is one of the most basic [[Gallery of Just Intervals|intervals]] found in musical systems throughout the entire world. It is usually called the "interval of equivalence" because tones separated by an octave are perceived to have the same or similar pitch class to the average human listener. The reason for this phenomena is probably due to the strong region of attraction of low [[harmonic entropy]], or the strong amplitude of the second [[harmonic]] in most harmonic instruments.


It has a frequency ratio of 2/1 and a size of 1200 [[cent|cents]]. It is used as the standard of (logarithmic) measurement for all intervals, regardless if they are justly tuned or not.
It has a frequency ratio of 2/1 and a size of 1200 [[cent|cents]]. It is used as the standard of (logarithmic) measurement for all intervals, regardless if they are justly tuned or not.
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* [[Ditave]] - an alternative more neutral name</pre></div>
* [[Ditave]] - an alternative more neutral name</pre></div>
<h4>Original HTML content:</h4>
<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;Octave&lt;/title&gt;&lt;/head&gt;&lt;body&gt;The &lt;strong&gt;octave&lt;/strong&gt; is one of the most basic &lt;a class="wiki_link" href="/Gallery%20of%20Just%20Intervals"&gt;intervals&lt;/a&gt; found in musical systems throughout the entire world. It is usually called the &amp;quot;interval of equivalence&amp;quot; because tones separated by an octave are perceived to have the same or similar pitch class to the average human listener. The reason for this phenomena is probably due to the strong region of attraction of low &lt;a class="wiki_link" href="/harmonic%20entropy"&gt;harmonic entropy&lt;/a&gt;, or the strong amplitude of the second &lt;a class="wiki_link" href="/harmonic"&gt;harmonic&lt;/a&gt; in most harmonic instruments.&lt;br /&gt;
<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;Octave&lt;/title&gt;&lt;/head&gt;&lt;body&gt;&lt;!-- ws:start:WikiTextMediaRule:0:&amp;lt;img src=&amp;quot;http://www.wikispaces.com/site/embedthumbnail/file-audio/jid_2_1_pluck_adu_dr220.mp3?h=20&amp;amp;w=240&amp;quot; class=&amp;quot;WikiMedia WikiMediaFile&amp;quot; id=&amp;quot;wikitext@@media@@type=&amp;amp;quot;file&amp;amp;quot; key=&amp;amp;quot;jid_2_1_pluck_adu_dr220.mp3&amp;amp;quot;&amp;quot; title=&amp;quot;Local Media File&amp;quot;height=&amp;quot;20&amp;quot; width=&amp;quot;240&amp;quot;/&amp;gt; --&gt;&lt;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_2_1_pluck_adu_dr220.mp3?file_extension=mp3&amp;autostart=false&amp;repeat=false&amp;showdigits=true&amp;showfsbutton=false&amp;width=240&amp;height=20"&gt;&lt;/embed&gt;&lt;!-- ws:end:WikiTextMediaRule:0 --&gt;&lt;br /&gt;
&lt;br /&gt;
The &lt;strong&gt;octave&lt;/strong&gt; is one of the most basic &lt;a class="wiki_link" href="/Gallery%20of%20Just%20Intervals"&gt;intervals&lt;/a&gt; found in musical systems throughout the entire world. It is usually called the &amp;quot;interval of equivalence&amp;quot; because tones separated by an octave are perceived to have the same or similar pitch class to the average human listener. The reason for this phenomena is probably due to the strong region of attraction of low &lt;a class="wiki_link" href="/harmonic%20entropy"&gt;harmonic entropy&lt;/a&gt;, or the strong amplitude of the second &lt;a class="wiki_link" href="/harmonic"&gt;harmonic&lt;/a&gt; in most harmonic instruments.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
It has a frequency ratio of 2/1 and a size of 1200 &lt;a class="wiki_link" href="/cent"&gt;cents&lt;/a&gt;. It is used as the standard of (logarithmic) measurement for all intervals, regardless if they are justly tuned or not.&lt;br /&gt;
It has a frequency ratio of 2/1 and a size of 1200 &lt;a class="wiki_link" href="/cent"&gt;cents&lt;/a&gt;. It is used as the standard of (logarithmic) measurement for all intervals, regardless if they are justly tuned or not.&lt;br /&gt;
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Strangely enough, the Pelog and Slendro scales of the Javanese contain near-octaves even though gamelan instruments exhibit inharmonic spectra. It is most likely reminiscent of an older musical system, or derived using the human voice instead of inharmonic instruments.&lt;br /&gt;
Strangely enough, the Pelog and Slendro scales of the Javanese contain near-octaves even though gamelan instruments exhibit inharmonic spectra. It is most likely reminiscent of an older musical system, or derived using the human voice instead of inharmonic instruments.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;!-- ws:start:WikiTextHeadingRule:0:&amp;lt;h2&amp;gt; --&gt;&lt;h2 id="toc0"&gt;&lt;a name="x-Links"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:0 --&gt;Links&lt;/h2&gt;
&lt;!-- ws:start:WikiTextHeadingRule:1:&amp;lt;h2&amp;gt; --&gt;&lt;h2 id="toc0"&gt;&lt;a name="x-Links"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:1 --&gt;Links&lt;/h2&gt;
  &lt;ul&gt;&lt;li&gt;&lt;a class="wiki_link_ext" href="http://www.kylegann.com/Octave.html" rel="nofollow"&gt;Anatomy of an Octave&lt;/a&gt; by &lt;a class="wiki_link" href="/Kyle%20Gann"&gt;Kyle Gann&lt;/a&gt;&lt;/li&gt;&lt;/ul&gt;&lt;br /&gt;
  &lt;ul&gt;&lt;li&gt;&lt;a class="wiki_link_ext" href="http://www.kylegann.com/Octave.html" rel="nofollow"&gt;Anatomy of an Octave&lt;/a&gt; by &lt;a class="wiki_link" href="/Kyle%20Gann"&gt;Kyle Gann&lt;/a&gt;&lt;/li&gt;&lt;/ul&gt;&lt;br /&gt;
&lt;!-- ws:start:WikiTextHeadingRule:2:&amp;lt;h2&amp;gt; --&gt;&lt;h2 id="toc1"&gt;&lt;a name="x-see also"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:2 --&gt;see also&lt;/h2&gt;
&lt;!-- ws:start:WikiTextHeadingRule:3:&amp;lt;h2&amp;gt; --&gt;&lt;h2 id="toc1"&gt;&lt;a name="x-see also"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:3 --&gt;see also&lt;/h2&gt;
  &lt;ul&gt;&lt;li&gt;&lt;a class="wiki_link" href="/Prime%20Interval"&gt;Prime Interval&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a class="wiki_link" href="/Gallery%20of%20Just%20Intervals"&gt;Gallery of Just Intervals&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a class="wiki_link" href="/Toctave"&gt;Toctave&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a class="wiki_link" href="/EDO"&gt;EDO&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a class="wiki_link" href="/Ditave"&gt;Ditave&lt;/a&gt; - an alternative more neutral name&lt;/li&gt;&lt;/ul&gt;&lt;/body&gt;&lt;/html&gt;</pre></div>
  &lt;ul&gt;&lt;li&gt;&lt;a class="wiki_link" href="/Prime%20Interval"&gt;Prime Interval&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a class="wiki_link" href="/Gallery%20of%20Just%20Intervals"&gt;Gallery of Just Intervals&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a class="wiki_link" href="/Toctave"&gt;Toctave&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a class="wiki_link" href="/EDO"&gt;EDO&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a class="wiki_link" href="/Ditave"&gt;Ditave&lt;/a&gt; - an alternative more neutral name&lt;/li&gt;&lt;/ul&gt;&lt;/body&gt;&lt;/html&gt;</pre></div>

Revision as of 11:29, 7 June 2014

IMPORTED REVISION FROM WIKISPACES

This is an imported revision from Wikispaces. The revision metadata is included below for reference:

This revision was by author spt3125 and made on 2014-06-07 11:29:08 UTC.
The original revision id was 513181726.
The revision comment was: added audio sample

The revision contents are below, presented both in the original Wikispaces Wikitext format, and in HTML exactly as Wikispaces rendered it.

Original Wikitext content:

[[media type="file" key="jid_2_1_pluck_adu_dr220.mp3"]]

The **octave** is one of the most basic [[Gallery of Just Intervals|intervals]] found in musical systems throughout the entire world. It is usually called the "interval of equivalence" because tones separated by an octave are perceived to have the same or similar pitch class to the average human listener. The reason for this phenomena is probably due to the strong region of attraction of low [[harmonic entropy]], or the strong amplitude of the second [[harmonic]] in most harmonic instruments.

It has a frequency ratio of 2/1 and a size of 1200 [[cent|cents]]. It is used as the standard of (logarithmic) measurement for all intervals, regardless if they are justly tuned or not.

Strangely enough, the Pelog and Slendro scales of the Javanese contain near-octaves even though gamelan instruments exhibit inharmonic spectra. It is most likely reminiscent of an older musical system, or derived using the human voice instead of inharmonic instruments.

==Links== 
* [[http://www.kylegann.com/Octave.html|Anatomy of an Octave]] by [[Kyle Gann]]

==see also== 
* [[Prime Interval]]
* [[Gallery of Just Intervals]]
* [[Toctave]]
* [[EDO]]
* [[Ditave]] - an alternative more neutral name

Original HTML content:

<html><head><title>Octave</title></head><body><!-- ws:start:WikiTextMediaRule:0:&lt;img src=&quot;http://www.wikispaces.com/site/embedthumbnail/file-audio/jid_2_1_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_2_1_pluck_adu_dr220.mp3&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_2_1_pluck_adu_dr220.mp3?file_extension=mp3&autostart=false&repeat=false&showdigits=true&showfsbutton=false&width=240&height=20"></embed><!-- ws:end:WikiTextMediaRule:0 --><br />
<br />
The <strong>octave</strong> is one of the most basic <a class="wiki_link" href="/Gallery%20of%20Just%20Intervals">intervals</a> found in musical systems throughout the entire world. It is usually called the &quot;interval of equivalence&quot; because tones separated by an octave are perceived to have the same or similar pitch class to the average human listener. The reason for this phenomena is probably due to the strong region of attraction of low <a class="wiki_link" href="/harmonic%20entropy">harmonic entropy</a>, or the strong amplitude of the second <a class="wiki_link" href="/harmonic">harmonic</a> in most harmonic instruments.<br />
<br />
It has a frequency ratio of 2/1 and a size of 1200 <a class="wiki_link" href="/cent">cents</a>. It is used as the standard of (logarithmic) measurement for all intervals, regardless if they are justly tuned or not.<br />
<br />
Strangely enough, the Pelog and Slendro scales of the Javanese contain near-octaves even though gamelan instruments exhibit inharmonic spectra. It is most likely reminiscent of an older musical system, or derived using the human voice instead of inharmonic instruments.<br />
<br />
<!-- ws:start:WikiTextHeadingRule:1:&lt;h2&gt; --><h2 id="toc0"><a name="x-Links"></a><!-- ws:end:WikiTextHeadingRule:1 -->Links</h2>
 <ul><li><a class="wiki_link_ext" href="http://www.kylegann.com/Octave.html" rel="nofollow">Anatomy of an Octave</a> by <a class="wiki_link" href="/Kyle%20Gann">Kyle Gann</a></li></ul><br />
<!-- ws:start:WikiTextHeadingRule:3:&lt;h2&gt; --><h2 id="toc1"><a name="x-see also"></a><!-- ws:end:WikiTextHeadingRule:3 -->see also</h2>
 <ul><li><a class="wiki_link" href="/Prime%20Interval">Prime Interval</a></li><li><a class="wiki_link" href="/Gallery%20of%20Just%20Intervals">Gallery of Just Intervals</a></li><li><a class="wiki_link" href="/Toctave">Toctave</a></li><li><a class="wiki_link" href="/EDO">EDO</a></li><li><a class="wiki_link" href="/Ditave">Ditave</a> - an alternative more neutral name</li></ul></body></html>