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| <h2>IMPORTED REVISION FROM WIKISPACES</h2>
| | A ''pitch class'' is a set (equivalence class) of all pitches that are a whole number of octaves apart, e.g., the pitch class C consists of the Cs in all octaves. Thus the pitch class "C" is the set |
| This is an imported revision from Wikispaces. The revision metadata is included below for reference:<br>
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| : This revision was by author [[User:phylingual|phylingual]] and made on <tt>2012-06-14 14:34:31 UTC</tt>.<br>
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| : The original revision id was <tt>345411012</tt>.<br>
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| : The revision comment was: <tt></tt><br>
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| The revision contents are below, presented both in the original Wikispaces Wikitext format, and in HTML exactly as Wikispaces rendered it.<br>
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| <h4>Original Wikitext content:</h4>
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| <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">A //pitch class// is a set (equivalence class) of all pitches that are a whole number of octaves apart, e.g., the pitch class C consists of the Cs in all octaves. Thus the pitch class "C" is the set
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| [[math]]
| | <math>{..., C_{-2}, C_{-1}, C_0, C_1, C_2 ...}</math> |
| {..., C_{-2}, C_{-1}, C_0, C_1, C_2 ...} | |
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| In terms of frequencies expressed in hertz, assuming a base frequency for middle C of 262 Hz, this would be {... 65.5, 131, 262, 524, 1028 ...}. In terms of midi note numbers, we can write it as {... 36, 48, 60, 72, 84 ...}. | | In terms of frequencies expressed in hertz, assuming a base frequency for middle C of 262 Hz, this would be {... 65.5, 131, 262, 524, 1028 ...}. In terms of midi note numbers, we can write it as {... 36, 48, 60, 72, 84 ...}. |
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| | | =Links= |
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| The Wikipedia article on it is: | | The Wikipedia article on it is: |
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| [[http://en.wikipedia.org/wiki/Pitch_class|Pitch class]]</pre></div>
| | [http://en.wikipedia.org/wiki/Pitch_class Pitch class] [[Category:pitch]] |
| <h4>Original HTML content:</h4>
| | [[Category:refonly]] |
| <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"><html><head><title>Pitch class</title></head><body>A <em>pitch class</em> is a set (equivalence class) of all pitches that are a whole number of octaves apart, e.g., the pitch class C consists of the Cs in all octaves. Thus the pitch class &quot;C&quot; is the set<br />
| | [[Category:theory]] |
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| | [[Category:todo:add_definition]] |
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| | [[Category:tone]] |
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| {..., C_{-2}, C_{-1}, C_0, C_1, C_2 ...}&lt;br/&gt;[[math]]
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| --><script type="math/tex">{..., C_{-2}, C_{-1}, C_0, C_1, C_2 ...}</script><!-- ws:end:WikiTextMathRule:0 --><br />
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| In terms of frequencies expressed in hertz, assuming a base frequency for middle C of 262 Hz, this would be {... 65.5, 131, 262, 524, 1028 ...}. In terms of midi note numbers, we can write it as {... 36, 48, 60, 72, 84 ...}.<br />
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| <!-- ws:start:WikiTextHeadingRule:1:&lt;h1&gt; --><h1 id="toc0"><a name="Links"></a><!-- ws:end:WikiTextHeadingRule:1 -->Links</h1>
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| The Wikipedia article on it is:<br />
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| <a class="wiki_link_ext" href="http://en.wikipedia.org/wiki/Pitch_class" rel="nofollow">Pitch class</a></body></html></pre></div>
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A pitch class is a set (equivalence class) of all pitches that are a whole number of octaves apart, e.g., the pitch class C consists of the Cs in all octaves. Thus the pitch class "C" is the set
[math]\displaystyle{ {..., C_{-2}, C_{-1}, C_0, C_1, C_2 ...} }[/math]
In terms of frequencies expressed in hertz, assuming a base frequency for middle C of 262 Hz, this would be {... 65.5, 131, 262, 524, 1028 ...}. In terms of midi note numbers, we can write it as {... 36, 48, 60, 72, 84 ...}.
Links
The Wikipedia article on it is:
Pitch class