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| <h2>IMPORTED REVISION FROM WIKISPACES</h2>
| | {{Wikipedia|Interval class|Generic and specific intervals}} |
| This is an imported revision from Wikispaces. The revision metadata is included below for reference:<br>
| | '''Interval class''' is used in the following ways: |
| : This revision was by author [[User:xenwolf|xenwolf]] and made on <tt>2010-06-02 04:28:05 UTC</tt>.<br>
| | # First, common in academic [[Wikipedia: Set theory (music)|set theory]], defines it as the [[Octave #Octave equivalence|octave-equivalent]] distance between two pitch classes, measured by the shortest distance. Thus C to G may be the interval of 7, but its interval class is 5. The largest interval class or "ic" – in [[12edo]] – is the tritone (6). This may be criticized on the grounds that it is less useful and less generalizable than the second definition. |
| : The original revision id was <tt>146426825</tt>.<br>
| | # The second definition, used for example by [[Scala]], defines the ''interval class'', or the '''''generic interval''''', as the set of all specific intervals ([[interval qualities]]) at a certain number of scale steps apart. More formally, an interval class is the set of all intervals that occur in the scale as ''k''-step intervals, or ''k''-steps, for a specific fixed integer ''k''. For example, the interval class of 2-steps in the diatonic scale ([[5L 2s]]) is the set {2L, L + s} = {major third, minor third}. |
| : 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">
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| //Interval class (ic). The distance between two pitch classes, measured by the shortest distance. C to G may be the interval of 7, but its interval class is 5. Thus, the largest ic is the tritone (6).//
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| from http://solomonsmusic.net/setheory.htm#Basic%20Definition
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| | == See also == |
| | * [[Pitch class]] |
| | * [[Interval size measure]] |
| | * [[Interval region]] |
| | * [[Functional systems]] |
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| read also the Wikipedia article on it:
| | [[Category:Interval]] |
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| [[http://en.wikipedia.org/wiki/Interval_class|Interval class]] </pre></div> | |
| <h4>Original HTML 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;width:200%;white-space: pre-wrap ! important" class="old-revision-html"><html><head><title>Interval class</title></head><body><br />
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| <em>Interval class (ic). The distance between two pitch classes, measured by the shortest distance. C to G may be the interval of 7, but its interval class is 5. Thus, the largest ic is the tritone (6).</em><br />
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| from <!-- ws:start:WikiTextUrlRule:8:http://solomonsmusic.net/setheory.htm#Basic%20Definition --><a class="wiki_link_ext" href="http://solomonsmusic.net/setheory.htm#Basic%20Definition" rel="nofollow">http://solomonsmusic.net/setheory.htm#Basic%20Definition</a><!-- ws:end:WikiTextUrlRule:8 --><br />
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| read also the Wikipedia article on it:<br />
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| <a class="wiki_link_ext" href="http://en.wikipedia.org/wiki/Interval_class" rel="nofollow">Interval class</a></body></html></pre></div>
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