Lumma stability: Difference between revisions

Wikispaces>clumma
**Imported revision 245800515 - Original comment: **
Wikispaces>clumma
**Imported revision 245800563 - Original comment: **
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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:clumma|clumma]] and made on <tt>2011-08-13 18:38:55 UTC</tt>.<br>
: This revision was by author [[User:clumma|clumma]] and made on <tt>2011-08-13 18:39:46 UTC</tt>.<br>
: The original revision id was <tt>245800515</tt>.<br>
: The original revision id was <tt>245800563</tt>.<br>
: The revision comment was: <tt></tt><br>
: 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>
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">Lumma stability is the portion of a scale's period which is not covered by its interval classes, and the "Lumma impropriety factor" is the portion which is more than singly-covered.  Scala will report the Lumma stability of any scale via its "show data" command.
<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">Lumma stability is the portion of a scale's period which is not covered by its interval classes.  The "Lumma impropriety factor" is the portion which is more than singly-covered.  Scala will report these for any scale via its "show data" command.


Rothenberg assumes a process whereby a listener hears melodic intervals between sounds and sorts them by size.  This produces an "interval matrix" (IM) in the listener's mind.  The listener continually refines this IM as stimuli arrive, and if a source is consistent for long enough he may remember its IM for later use.
Rothenberg assumes a process whereby a listener hears melodic intervals between sounds and sorts them by size.  This produces an "interval matrix" (IM) in the listener's mind.  The listener continually refines this IM as stimuli arrive, and if a source is consistent for long enough he may remember its IM for later use.
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Rothenberg stability is very similar, except it counts the number of overlaps, so it can't distinguish a gross overlap (in cents) from a small one, or detect when two interval classes are arbitrarily close to overlapping.</pre></div>
Rothenberg stability is very similar, except it counts the number of overlaps, so it can't distinguish a gross overlap (in cents) from a small one, or detect when two interval classes are arbitrarily close to overlapping.</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;Lumma stability&lt;/title&gt;&lt;/head&gt;&lt;body&gt;Lumma stability is the portion of a scale's period which is not covered by its interval classes, and the &amp;quot;Lumma impropriety factor&amp;quot; is the portion which is more than singly-covered.  Scala will report the Lumma stability of any scale via its &amp;quot;show data&amp;quot; command.&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;Lumma stability&lt;/title&gt;&lt;/head&gt;&lt;body&gt;Lumma stability is the portion of a scale's period which is not covered by its interval classes.  The &amp;quot;Lumma impropriety factor&amp;quot; is the portion which is more than singly-covered.  Scala will report these for any scale via its &amp;quot;show data&amp;quot; command.&lt;br /&gt;
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Rothenberg assumes a process whereby a listener hears melodic intervals between sounds and sorts them by size.  This produces an &amp;quot;interval matrix&amp;quot; (IM) in the listener's mind.  The listener continually refines this IM as stimuli arrive, and if a source is consistent for long enough he may remember its IM for later use.&lt;br /&gt;
Rothenberg assumes a process whereby a listener hears melodic intervals between sounds and sorts them by size.  This produces an &amp;quot;interval matrix&amp;quot; (IM) in the listener's mind.  The listener continually refines this IM as stimuli arrive, and if a source is consistent for long enough he may remember its IM for later use.&lt;br /&gt;