24edo: Difference between revisions

Wikispaces>hstraub
**Imported revision 174008781 - Original comment: **
Wikispaces>Andrew_Heathwaite
**Imported revision 174473737 - Original comment: table with nearby JI intervals**
Line 1: Line 1:
<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:hstraub|hstraub]] and made on <tt>2010-10-27 07:15:26 UTC</tt>.<br>
: This revision was by author [[User:Andrew_Heathwaite|Andrew_Heathwaite]] and made on <tt>2010-10-28 12:43:29 UTC</tt>.<br>
: The original revision id was <tt>174008781</tt>.<br>
: The original revision id was <tt>174473737</tt>.<br>
: The revision comment was: <tt></tt><br>
: The revision comment was: <tt>table with nearby JI intervals</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>
Line 16: Line 16:
The twelve new intervals in quartertones are:
The twelve new intervals in quartertones are:


50 cents - subminor second
||||~ The twelve new intervals in 24edo ||||||~ some nearby JI intervals ||
150 cents - neutral second
||~ cents ||~ common name ||~ frequency ratio ||~ cents ||~ common name ||
250 cents - supermajor second, subminor third
||= 50 ||= subminor second, quartertone ||= [[36_35|36/35]]
350 cents - neutral third
[[35_34|35/34]]
450 cents - minor fourth, supermajor third
[[34_33|34/33]]
550 cents - major fourth
[[33_32|33/32]] ||= 48.770
650 cents - minor fifth
50.184
750 cents - major fifth, subminor sixth
51.682
850 cents - neutral sixth
53.273 ||= large septimal quarter-tone (Archytas)
950 cents - supermajor sixth, subminor seventh
large 17-limit quartertone
1050 cents - neutral seventh
small 17-limit quartertone
1150 cents - minor octave, supermajor seventh
33rd harmonic ||
||= 150 ||= neutral second ||= [[12_11|12/11]] ||= 150.637 ||= large undecimal neutral second ||
||= 250 ||= supermajor second, subminor third ||= [[144|125|144/125]]
[[15_13|15/13]]
[[52_45|52/45]] ||= 244.969
247.741
250.304 ||= diminished third (6/5 x 24/25) ||
||= 350 ||= neutral third ||= [[11_9|11/9]]
[[27_22|27/22]]
[[16_13|16/13]] ||= 347.408
354.547
359.472 ||= undecimal neutral third
 
tridecimal neutral third ||
||= 450 ||= minor fourth, supermajor third, subfourth ||= [[22_17|22/17]]
[[35_27|35/27]]
[[13_10|13/10]] ||= 446.363
449.275
454.214 ||= 17-limit supermajor third
 
tridecimal subfourth ||
||= 550 ||= major fourth, superfourth ||= [[11_8|11/8]] ||= 551.318 ||= undecimal superfourth, harmonic 11th ||
||= 650 ||= minor fifth, subfifth ||= [[16_11|16/11]] ||= 648.682 ||= undecimal subfifth, 11th subharmonic ||
||= 750 ||= major fifth, subminor sixth, superfifth ||= [[20_13|20/13]]
[[54_35|54/35]]
[[17_11|17/11]] ||= 745.786
750.725
753.637 ||= tridecimal superfifth
 
17-limit subminor sixth ||
||= 850 ||= neutral sixth ||= [[13_8|13/8]]
[[44_27|44/27]]
[[18_11|18/11]] ||= 840.528
845.453
852.592 ||= overtone sixth, 13th harmonic
 
undecimal neutral sixth ||
||= 950 ||= supermajor sixth, subminor seventh ||= [[45_26|45/26]]
[[26_15|26/15]]
[[125_72|125/72]] ||= 949.696
952.259
955.031 ||=  ||
||= 1050 ||= neutral seventh ||= [[11_6|11/6]] ||= 1049.363 ||= undecimal neutral seventh ||
||= 1150 ||= minor octave, supermajor seventh ||= [[31_16|31/16]]
[[33_17|33/17]]
[[35_18|35/18]] ||= 1145.036
1148.318
1151.230 ||= 31st harmonic ||


==As a temperament==  
==As a temperament==  
Line 187: Line 234:
The twelve new intervals in quartertones are:&lt;br /&gt;
The twelve new intervals in quartertones are:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
50 cents - subminor second&lt;br /&gt;
 
150 cents - neutral second&lt;br /&gt;
 
250 cents - supermajor second, subminor third&lt;br /&gt;
&lt;table class="wiki_table"&gt;
350 cents - neutral third&lt;br /&gt;
    &lt;tr&gt;
450 cents - minor fourth, supermajor third&lt;br /&gt;
        &lt;th colspan="2"&gt;The twelve new intervals in 24edo&lt;br /&gt;
550 cents - major fourth&lt;br /&gt;
&lt;/th&gt;
650 cents - minor fifth&lt;br /&gt;
        &lt;th colspan="3"&gt;some nearby JI intervals&lt;br /&gt;
750 cents - major fifth, subminor sixth&lt;br /&gt;
&lt;/th&gt;
850 cents - neutral sixth&lt;br /&gt;
    &lt;/tr&gt;
950 cents - supermajor sixth, subminor seventh&lt;br /&gt;
    &lt;tr&gt;
1050 cents - neutral seventh&lt;br /&gt;
        &lt;th&gt;cents&lt;br /&gt;
1150 cents - minor octave, supermajor seventh&lt;br /&gt;
&lt;/th&gt;
        &lt;th&gt;common name&lt;br /&gt;
&lt;/th&gt;
        &lt;th&gt;frequency ratio&lt;br /&gt;
&lt;/th&gt;
        &lt;th&gt;cents&lt;br /&gt;
&lt;/th&gt;
        &lt;th&gt;common name&lt;br /&gt;
&lt;/th&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td style="text-align: center;"&gt;50&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;subminor second, quartertone&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;&lt;a class="wiki_link" href="/36_35"&gt;36/35&lt;/a&gt;&lt;br /&gt;
&lt;a class="wiki_link" href="/35_34"&gt;35/34&lt;/a&gt;&lt;br /&gt;
&lt;a class="wiki_link" href="/34_33"&gt;34/33&lt;/a&gt;&lt;br /&gt;
&lt;a class="wiki_link" href="/33_32"&gt;33/32&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;48.770&lt;br /&gt;
50.184&lt;br /&gt;
51.682&lt;br /&gt;
53.273&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;large septimal quarter-tone (Archytas)&lt;br /&gt;
large 17-limit quartertone&lt;br /&gt;
small 17-limit quartertone&lt;br /&gt;
33rd harmonic&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td style="text-align: center;"&gt;150&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;neutral second&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;&lt;a class="wiki_link" href="/12_11"&gt;12/11&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;150.637&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;large undecimal neutral second&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td style="text-align: center;"&gt;250&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;supermajor second, subminor third&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;&lt;a class="wiki_link" href="/144"&gt;125|144/125&lt;/a&gt;&lt;br /&gt;
&lt;a class="wiki_link" href="/15_13"&gt;15/13&lt;/a&gt;&lt;br /&gt;
&lt;a class="wiki_link" href="/52_45"&gt;52/45&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;244.969&lt;br /&gt;
247.741&lt;br /&gt;
250.304&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;diminished third (6/5 x 24/25)&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td style="text-align: center;"&gt;350&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;neutral third&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;&lt;a class="wiki_link" href="/11_9"&gt;11/9&lt;/a&gt;&lt;br /&gt;
&lt;a class="wiki_link" href="/27_22"&gt;27/22&lt;/a&gt;&lt;br /&gt;
&lt;a class="wiki_link" href="/16_13"&gt;16/13&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;347.408&lt;br /&gt;
354.547&lt;br /&gt;
359.472&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;undecimal neutral third&lt;br /&gt;
&lt;br /&gt;
tridecimal neutral third&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td style="text-align: center;"&gt;450&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;minor fourth, supermajor third, subfourth&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;&lt;a class="wiki_link" href="/22_17"&gt;22/17&lt;/a&gt;&lt;br /&gt;
&lt;a class="wiki_link" href="/35_27"&gt;35/27&lt;/a&gt;&lt;br /&gt;
&lt;a class="wiki_link" href="/13_10"&gt;13/10&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;446.363&lt;br /&gt;
449.275&lt;br /&gt;
454.214&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;17-limit supermajor third&lt;br /&gt;
&lt;br /&gt;
tridecimal subfourth&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td style="text-align: center;"&gt;550&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;major fourth, superfourth&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;&lt;a class="wiki_link" href="/11_8"&gt;11/8&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;551.318&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;undecimal superfourth, harmonic 11th&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td style="text-align: center;"&gt;650&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;minor fifth, subfifth&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;&lt;a class="wiki_link" href="/16_11"&gt;16/11&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;648.682&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;undecimal subfifth, 11th subharmonic&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td style="text-align: center;"&gt;750&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;major fifth, subminor sixth, superfifth&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;&lt;a class="wiki_link" href="/20_13"&gt;20/13&lt;/a&gt;&lt;br /&gt;
&lt;a class="wiki_link" href="/54_35"&gt;54/35&lt;/a&gt;&lt;br /&gt;
&lt;a class="wiki_link" href="/17_11"&gt;17/11&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;745.786&lt;br /&gt;
750.725&lt;br /&gt;
753.637&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;tridecimal superfifth&lt;br /&gt;
&lt;br /&gt;
17-limit subminor sixth&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td style="text-align: center;"&gt;850&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;neutral sixth&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;&lt;a class="wiki_link" href="/13_8"&gt;13/8&lt;/a&gt;&lt;br /&gt;
&lt;a class="wiki_link" href="/44_27"&gt;44/27&lt;/a&gt;&lt;br /&gt;
&lt;a class="wiki_link" href="/18_11"&gt;18/11&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;840.528&lt;br /&gt;
845.453&lt;br /&gt;
852.592&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;overtone sixth, 13th harmonic&lt;br /&gt;
&lt;br /&gt;
undecimal neutral sixth&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td style="text-align: center;"&gt;950&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;supermajor sixth, subminor seventh&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;&lt;a class="wiki_link" href="/45_26"&gt;45/26&lt;/a&gt;&lt;br /&gt;
&lt;a class="wiki_link" href="/26_15"&gt;26/15&lt;/a&gt;&lt;br /&gt;
&lt;a class="wiki_link" href="/125_72"&gt;125/72&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;949.696&lt;br /&gt;
952.259&lt;br /&gt;
955.031&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td style="text-align: center;"&gt;1050&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;neutral seventh&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;&lt;a class="wiki_link" href="/11_6"&gt;11/6&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;1049.363&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;undecimal neutral seventh&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td style="text-align: center;"&gt;1150&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;minor octave, supermajor seventh&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;&lt;a class="wiki_link" href="/31_16"&gt;31/16&lt;/a&gt;&lt;br /&gt;
&lt;a class="wiki_link" href="/33_17"&gt;33/17&lt;/a&gt;&lt;br /&gt;
&lt;a class="wiki_link" href="/35_18"&gt;35/18&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;1145.036&lt;br /&gt;
1148.318&lt;br /&gt;
1151.230&lt;br /&gt;
&lt;/td&gt;
        &lt;td style="text-align: center;"&gt;31st harmonic&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
&lt;/table&gt;
 
&lt;br /&gt;
&lt;br /&gt;
&lt;!-- ws:start:WikiTextHeadingRule:4:&amp;lt;h2&amp;gt; --&gt;&lt;h2 id="toc2"&gt;&lt;a name="Theory-As a temperament"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:4 --&gt;As a temperament&lt;/h2&gt;
&lt;!-- ws:start:WikiTextHeadingRule:4:&amp;lt;h2&amp;gt; --&gt;&lt;h2 id="toc2"&gt;&lt;a name="Theory-As a temperament"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:4 --&gt;As a temperament&lt;/h2&gt;
Line 213: Line 460:
&lt;!-- ws:start:WikiTextHeadingRule:6:&amp;lt;h1&amp;gt; --&gt;&lt;h1 id="toc3"&gt;&lt;a name="Notation"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:6 --&gt;Notation&lt;/h1&gt;
&lt;!-- ws:start:WikiTextHeadingRule:6:&amp;lt;h1&amp;gt; --&gt;&lt;h1 id="toc3"&gt;&lt;a name="Notation"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:6 --&gt;Notation&lt;/h1&gt;
  &lt;br /&gt;
  &lt;br /&gt;
&lt;!-- ws:start:WikiTextRemoteImageRule:622:&amp;lt;img src=&amp;quot;http://www.wfg.woodwind.org/n/s14_blue.gif&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://www.wfg.woodwind.org/n/s14_blue.gif" alt="external image s14_blue.gif" title="external image s14_blue.gif" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:622 --&gt; = quarter-tone sharp&lt;br /&gt;
&lt;!-- ws:start:WikiTextRemoteImageRule:786:&amp;lt;img src=&amp;quot;http://www.wfg.woodwind.org/n/s14_blue.gif&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://www.wfg.woodwind.org/n/s14_blue.gif" alt="external image s14_blue.gif" title="external image s14_blue.gif" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:786 --&gt; = quarter-tone sharp&lt;br /&gt;
&lt;!-- ws:start:WikiTextRemoteImageRule:623:&amp;lt;img src=&amp;quot;http://www.wfg.woodwind.org/n/s34_blue.gif&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://www.wfg.woodwind.org/n/s34_blue.gif" alt="external image s34_blue.gif" title="external image s34_blue.gif" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:623 --&gt; = three-quarter-tone sharp&lt;br /&gt;
&lt;!-- ws:start:WikiTextRemoteImageRule:787:&amp;lt;img src=&amp;quot;http://www.wfg.woodwind.org/n/s34_blue.gif&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://www.wfg.woodwind.org/n/s34_blue.gif" alt="external image s34_blue.gif" title="external image s34_blue.gif" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:787 --&gt; = three-quarter-tone sharp&lt;br /&gt;
&lt;!-- ws:start:WikiTextRemoteImageRule:624:&amp;lt;img src=&amp;quot;http://www.wfg.woodwind.org/n/f14_blue.gif&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://www.wfg.woodwind.org/n/f14_blue.gif" alt="external image f14_blue.gif" title="external image f14_blue.gif" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:624 --&gt; = quarter-tone flat&lt;br /&gt;
&lt;!-- ws:start:WikiTextRemoteImageRule:788:&amp;lt;img src=&amp;quot;http://www.wfg.woodwind.org/n/f14_blue.gif&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://www.wfg.woodwind.org/n/f14_blue.gif" alt="external image f14_blue.gif" title="external image f14_blue.gif" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:788 --&gt; = quarter-tone flat&lt;br /&gt;
&lt;!-- ws:start:WikiTextRemoteImageRule:625:&amp;lt;img src=&amp;quot;http://www.wfg.woodwind.org/n/f34_blue.gif&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://www.wfg.woodwind.org/n/f34_blue.gif" alt="external image f34_blue.gif" title="external image f34_blue.gif" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:625 --&gt; = three-quarter-tone flat&lt;br /&gt;
&lt;!-- ws:start:WikiTextRemoteImageRule:789:&amp;lt;img src=&amp;quot;http://www.wfg.woodwind.org/n/f34_blue.gif&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://www.wfg.woodwind.org/n/f34_blue.gif" alt="external image f34_blue.gif" title="external image f34_blue.gif" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:789 --&gt; = three-quarter-tone flat&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Alternately, in another notation system,&lt;br /&gt;
Alternately, in another notation system,&lt;br /&gt;
&lt;!-- ws:start:WikiTextRemoteImageRule:626:&amp;lt;img src=&amp;quot;http://faculty.mansfield.edu/jmurphy/oldsite/quartertonesharp.gif&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://faculty.mansfield.edu/jmurphy/oldsite/quartertonesharp.gif" alt="external image quartertonesharp.gif" title="external image quartertonesharp.gif" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:626 --&gt; can be used as a quarter-tone sharp,&lt;br /&gt;
&lt;!-- ws:start:WikiTextRemoteImageRule:790:&amp;lt;img src=&amp;quot;http://faculty.mansfield.edu/jmurphy/oldsite/quartertonesharp.gif&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://faculty.mansfield.edu/jmurphy/oldsite/quartertonesharp.gif" alt="external image quartertonesharp.gif" title="external image quartertonesharp.gif" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:790 --&gt; can be used as a quarter-tone sharp,&lt;br /&gt;
††† (the horizontal line should connect all three vertical lines) can be used as a three-quartertone sharp,&lt;br /&gt;
††† (the horizontal line should connect all three vertical lines) can be used as a three-quartertone sharp,&lt;br /&gt;
&lt;!-- ws:start:WikiTextRemoteImageRule:627:&amp;lt;img src=&amp;quot;http://www.dolmetsch.com/onequarterflat.gif&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://www.dolmetsch.com/onequarterflat.gif" alt="external image onequarterflat.gif" title="external image onequarterflat.gif" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:627 --&gt; = quartertone flat,&lt;br /&gt;
&lt;!-- ws:start:WikiTextRemoteImageRule:791:&amp;lt;img src=&amp;quot;http://www.dolmetsch.com/onequarterflat.gif&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://www.dolmetsch.com/onequarterflat.gif" alt="external image onequarterflat.gif" title="external image onequarterflat.gif" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:791 --&gt; = quartertone flat,&lt;br /&gt;
&lt;!-- ws:start:WikiTextRemoteImageRule:628:&amp;lt;img src=&amp;quot;http://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Arabic_music_notation_half_flat.svg/9px-Arabic_music_notation_half_flat.svg.png&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Arabic_music_notation_half_flat.svg/9px-Arabic_music_notation_half_flat.svg.png" alt="external image 9px-Arabic_music_notation_half_flat.svg.png" title="external image 9px-Arabic_music_notation_half_flat.svg.png" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:628 --&gt; can be used as a three-quarter-tone flat.&lt;br /&gt;
&lt;!-- ws:start:WikiTextRemoteImageRule:792:&amp;lt;img src=&amp;quot;http://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Arabic_music_notation_half_flat.svg/9px-Arabic_music_notation_half_flat.svg.png&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Arabic_music_notation_half_flat.svg/9px-Arabic_music_notation_half_flat.svg.png" alt="external image 9px-Arabic_music_notation_half_flat.svg.png" title="external image 9px-Arabic_music_notation_half_flat.svg.png" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:792 --&gt; can be used as a three-quarter-tone flat.&lt;br /&gt;
For example, the scale 0-5-10-15-20 is written as C-D&lt;!-- ws:start:WikiTextRemoteImageRule:629:&amp;lt;img src=&amp;quot;http://faculty.mansfield.edu/jmurphy/oldsite/quartertonesharp.gif&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://faculty.mansfield.edu/jmurphy/oldsite/quartertonesharp.gif" alt="external image quartertonesharp.gif" title="external image quartertonesharp.gif" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:629 --&gt; (or E&lt;!-- ws:start:WikiTextRemoteImageRule:630:&amp;lt;img src=&amp;quot;http://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Arabic_music_notation_half_flat.svg/9px-Arabic_music_notation_half_flat.svg.png&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Arabic_music_notation_half_flat.svg/9px-Arabic_music_notation_half_flat.svg.png" alt="external image 9px-Arabic_music_notation_half_flat.svg.png" title="external image 9px-Arabic_music_notation_half_flat.svg.png" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:630 --&gt;) F G&lt;!-- ws:start:WikiTextRemoteImageRule:631:&amp;lt;img src=&amp;quot;http://faculty.mansfield.edu/jmurphy/oldsite/quartertonesharp.gif&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://faculty.mansfield.edu/jmurphy/oldsite/quartertonesharp.gif" alt="external image quartertonesharp.gif" title="external image quartertonesharp.gif" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:631 --&gt; (or A&lt;!-- ws:start:WikiTextRemoteImageRule:632:&amp;lt;img src=&amp;quot;http://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Arabic_music_notation_half_flat.svg/9px-Arabic_music_notation_half_flat.svg.png&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Arabic_music_notation_half_flat.svg/9px-Arabic_music_notation_half_flat.svg.png" alt="external image 9px-Arabic_music_notation_half_flat.svg.png" title="external image 9px-Arabic_music_notation_half_flat.svg.png" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:632 --&gt;) Bb.&lt;br /&gt;
For example, the scale 0-5-10-15-20 is written as C-D&lt;!-- ws:start:WikiTextRemoteImageRule:793:&amp;lt;img src=&amp;quot;http://faculty.mansfield.edu/jmurphy/oldsite/quartertonesharp.gif&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://faculty.mansfield.edu/jmurphy/oldsite/quartertonesharp.gif" alt="external image quartertonesharp.gif" title="external image quartertonesharp.gif" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:793 --&gt; (or E&lt;!-- ws:start:WikiTextRemoteImageRule:794:&amp;lt;img src=&amp;quot;http://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Arabic_music_notation_half_flat.svg/9px-Arabic_music_notation_half_flat.svg.png&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Arabic_music_notation_half_flat.svg/9px-Arabic_music_notation_half_flat.svg.png" alt="external image 9px-Arabic_music_notation_half_flat.svg.png" title="external image 9px-Arabic_music_notation_half_flat.svg.png" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:794 --&gt;) F G&lt;!-- ws:start:WikiTextRemoteImageRule:795:&amp;lt;img src=&amp;quot;http://faculty.mansfield.edu/jmurphy/oldsite/quartertonesharp.gif&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://faculty.mansfield.edu/jmurphy/oldsite/quartertonesharp.gif" alt="external image quartertonesharp.gif" title="external image quartertonesharp.gif" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:795 --&gt; (or A&lt;!-- ws:start:WikiTextRemoteImageRule:796:&amp;lt;img src=&amp;quot;http://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Arabic_music_notation_half_flat.svg/9px-Arabic_music_notation_half_flat.svg.png&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Arabic_music_notation_half_flat.svg/9px-Arabic_music_notation_half_flat.svg.png" alt="external image 9px-Arabic_music_notation_half_flat.svg.png" title="external image 9px-Arabic_music_notation_half_flat.svg.png" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:796 --&gt;) Bb.&lt;br /&gt;
And in persian music:&lt;br /&gt;
And in persian music:&lt;br /&gt;
&lt;span style="display: block; text-align: center;"&gt;&lt;!-- ws:start:WikiTextRemoteImageRule:634:&amp;lt;a href=&amp;quot;/24edo&amp;quot;&amp;gt;&amp;lt;img src=&amp;quot;http://240edo.googlepages.com/2.jpg/2-custom;size:430,120.jpg&amp;quot; alt=&amp;quot;Sori,Koron&amp;quot; title=&amp;quot;Sori,Koron&amp;quot; /&amp;gt;&amp;lt;/a&amp;gt; --&gt;&lt;table class="captionBox"&gt;&lt;tr&gt;&lt;td class="captionedImage"&gt;&lt;a href="/24edo"&gt;&lt;img src="http://240edo.googlepages.com/2.jpg/2-custom;size:430,120.jpg" alt="Sori,Koron" title="Sori,Koron" /&gt;&lt;/a&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td class="imageCaption"&gt;Sori,Koron&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:634 --&gt;&lt;br /&gt;
&lt;span style="display: block; text-align: center;"&gt;&lt;!-- ws:start:WikiTextRemoteImageRule:798:&amp;lt;a href=&amp;quot;/24edo&amp;quot;&amp;gt;&amp;lt;img src=&amp;quot;http://240edo.googlepages.com/2.jpg/2-custom;size:430,120.jpg&amp;quot; alt=&amp;quot;Sori,Koron&amp;quot; title=&amp;quot;Sori,Koron&amp;quot; /&amp;gt;&amp;lt;/a&amp;gt; --&gt;&lt;table class="captionBox"&gt;&lt;tr&gt;&lt;td class="captionedImage"&gt;&lt;a href="/24edo"&gt;&lt;img src="http://240edo.googlepages.com/2.jpg/2-custom;size:430,120.jpg" alt="Sori,Koron" title="Sori,Koron" /&gt;&lt;/a&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td class="imageCaption"&gt;Sori,Koron&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:798 --&gt;&lt;br /&gt;
&lt;/span&gt;&lt;br /&gt;
&lt;/span&gt;&lt;br /&gt;
&lt;!-- ws:start:WikiTextHeadingRule:8:&amp;lt;h1&amp;gt; --&gt;&lt;h1 id="toc4"&gt;&lt;a name="Scales / Modes"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:8 --&gt;Scales / Modes&lt;/h1&gt;
&lt;!-- ws:start:WikiTextHeadingRule:8:&amp;lt;h1&amp;gt; --&gt;&lt;h1 id="toc4"&gt;&lt;a name="Scales / Modes"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:8 --&gt;Scales / Modes&lt;/h1&gt;
Line 824: Line 1,071:
  &lt;br /&gt;
  &lt;br /&gt;
The ever-arising question in microtonal music, how to play it on instruments designed for 12edo, has a relatively simple answer in the case of 24edo: use two standard instruments tuned a quartertone apart. This &lt;a class="wiki_link" href="/Microtonal%20Keyboards#twelvenoteoctavescales"&gt;&amp;quot;12 note octave scales&amp;quot;&lt;/a&gt; approach is used in a wide part of the existing literature - see below.&lt;br /&gt;
The ever-arising question in microtonal music, how to play it on instruments designed for 12edo, has a relatively simple answer in the case of 24edo: use two standard instruments tuned a quartertone apart. This &lt;a class="wiki_link" href="/Microtonal%20Keyboards#twelvenoteoctavescales"&gt;&amp;quot;12 note octave scales&amp;quot;&lt;/a&gt; approach is used in a wide part of the existing literature - see below.&lt;br /&gt;
&lt;!-- ws:start:WikiTextRemoteImageRule:635:&amp;lt;img src=&amp;quot;http://www.swordguitars.com/Sword_quartertone_stratsm.jpg&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; style=&amp;quot;height: 195px; width: 406px;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://www.swordguitars.com/Sword_quartertone_stratsm.jpg" alt="external image Sword_quartertone_stratsm.jpg" title="external image Sword_quartertone_stratsm.jpg" style="height: 195px; width: 406px;" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:635 --&gt;24-tone &amp;quot;1/4-tone&amp;quot; Guitar by Ron Sword / Sword guitars&lt;br /&gt;
&lt;!-- ws:start:WikiTextRemoteImageRule:799:&amp;lt;img src=&amp;quot;http://www.swordguitars.com/Sword_quartertone_stratsm.jpg&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; style=&amp;quot;height: 195px; width: 406px;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://www.swordguitars.com/Sword_quartertone_stratsm.jpg" alt="external image Sword_quartertone_stratsm.jpg" title="external image Sword_quartertone_stratsm.jpg" style="height: 195px; width: 406px;" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:799 --&gt;24-tone &amp;quot;1/4-tone&amp;quot; Guitar by Ron Sword / Sword guitars&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;!-- ws:start:WikiTextHeadingRule:14:&amp;lt;h1&amp;gt; --&gt;&lt;h1 id="toc7"&gt;&lt;a name="Compositions"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:14 --&gt;Compositions&lt;/h1&gt;
&lt;!-- ws:start:WikiTextHeadingRule:14:&amp;lt;h1&amp;gt; --&gt;&lt;h1 id="toc7"&gt;&lt;a name="Compositions"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:14 --&gt;Compositions&lt;/h1&gt;
Line 835: Line 1,082:
&lt;!-- ws:start:WikiTextHeadingRule:16:&amp;lt;h1&amp;gt; --&gt;&lt;h1 id="toc8"&gt;&lt;a name="Practical Theory / Books"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:16 --&gt;Practical Theory / Books&lt;/h1&gt;
&lt;!-- ws:start:WikiTextHeadingRule:16:&amp;lt;h1&amp;gt; --&gt;&lt;h1 id="toc8"&gt;&lt;a name="Practical Theory / Books"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:16 --&gt;Practical Theory / Books&lt;/h1&gt;
  &lt;br /&gt;
  &lt;br /&gt;
&lt;!-- ws:start:WikiTextRemoteImageRule:636:&amp;lt;img src=&amp;quot;http://ronsword.com/images/24_tet_Coversm.jpg&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; style=&amp;quot;height: 236px; width: 179px;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://ronsword.com/images/24_tet_Coversm.jpg" alt="external image 24_tet_Coversm.jpg" title="external image 24_tet_Coversm.jpg" style="height: 236px; width: 179px;" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:636 --&gt;&lt;strong&gt;&amp;quot;Icosakaiteraphonic Scales for Guitar&amp;quot;&lt;/strong&gt; - A Book for Twenty-Four Equal Divisions of the Octave on guitar, or 'Quarter-tones'. Features a practical approach to understanding the tuning, and over 550 Scale Examples on Nine-String finger board charts, which allows for both symmetrical tuning visualization and standard guitar tuning- helpful for bassists and large range guitarists as well. Includes MOS, DE, and *all* the Scales / Modes from the list above.&lt;br /&gt;
&lt;!-- ws:start:WikiTextRemoteImageRule:800:&amp;lt;img src=&amp;quot;http://ronsword.com/images/24_tet_Coversm.jpg&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; style=&amp;quot;height: 236px; width: 179px;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://ronsword.com/images/24_tet_Coversm.jpg" alt="external image 24_tet_Coversm.jpg" title="external image 24_tet_Coversm.jpg" style="height: 236px; width: 179px;" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:800 --&gt;&lt;strong&gt;&amp;quot;Icosakaiteraphonic Scales for Guitar&amp;quot;&lt;/strong&gt; - A Book for Twenty-Four Equal Divisions of the Octave on guitar, or 'Quarter-tones'. Features a practical approach to understanding the tuning, and over 550 Scale Examples on Nine-String finger board charts, which allows for both symmetrical tuning visualization and standard guitar tuning- helpful for bassists and large range guitarists as well. Includes MOS, DE, and *all* the Scales / Modes from the list above.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;!-- ws:start:WikiTextHeadingRule:18:&amp;lt;h1&amp;gt; --&gt;&lt;h1 id="toc9"&gt;&lt;a name="External links"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:18 --&gt;External links&lt;/h1&gt;
&lt;!-- ws:start:WikiTextHeadingRule:18:&amp;lt;h1&amp;gt; --&gt;&lt;h1 id="toc9"&gt;&lt;a name="External links"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:18 --&gt;External links&lt;/h1&gt;
  &lt;a class="wiki_link_ext" href="http://tonalsoft.com/enc/q/quarter-tone.aspx" rel="nofollow"&gt;quarter-tone / 24-edo - Encyclopedia of Microtonal Music Theory&lt;/a&gt;&lt;br /&gt;
  &lt;a class="wiki_link_ext" href="http://tonalsoft.com/enc/q/quarter-tone.aspx" rel="nofollow"&gt;quarter-tone / 24-edo - Encyclopedia of Microtonal Music Theory&lt;/a&gt;&lt;br /&gt;
&lt;a class="wiki_link_ext" href="http://www.96edo.com/24_EDO.html" rel="nofollow"&gt;About 24-EDO&lt;/a&gt;&lt;/body&gt;&lt;/html&gt;</pre></div>
&lt;a class="wiki_link_ext" href="http://www.96edo.com/24_EDO.html" rel="nofollow"&gt;About 24-EDO&lt;/a&gt;&lt;/body&gt;&lt;/html&gt;</pre></div>