18edo: Difference between revisions
Wikispaces>Kosmorsky **Imported revision 430237910 - Original comment: ** |
Wikispaces>JosephRuhf **Imported revision 545218750 - 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: | : This revision was by author [[User:JosephRuhf|JosephRuhf]] and made on <tt>2015-03-24 21:25:39 UTC</tt>.<br> | ||
: The original revision id was <tt> | : The original revision id was <tt>545218750</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> | ||
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===Representations of Just Intervals=== | ===Representations of Just Intervals=== | ||
|| Degree || Cents ||= 5L3s Notation || Nearest Ratio || Error (cents) || 17-Limit Ratios* || | || Degree || Cents | ||
DMS ||= 5L3s Notation || Nearest Ratio || Error (cents) | |||
(DMS) || 17-Limit Ratios* || | |||
|| 0 || 0 ||= **C** || 1/1 || 0 || **1/1** || | || 0 || 0 ||= **C** || 1/1 || 0 || **1/1** || | ||
|| 1 || 66.667 ||= Db || 27/26 || +1.329 ||> 78/75, 75/72 || | || 1 || 66.667 | ||
|| 2 || 133.333 ||= C# || 27/25 || +0.096 ||> 51/55, 42/39 || | 20° ||= Db || 27/26 || +1.329 | ||
|| 3 || 200 ||= **D** || 9/8 || -3.910 || **9/8** || | +23'56" ||> 78/75, 75/72 || | ||
|| 4 || 266.667 ||= Eb || 7/6 || -0.204 || **75/64** || | || 2 || 133.333 | ||
|| 5 || 333.333 ||= D# || 17/14 or 40/33 || -2.796 +0.293 || **39/32** || | 40° ||= C# || 27/25 || +0.096 | ||
|| 6 || 400 ||= **E** || 5/4 or 44/35 || +13.686 +3.822 ||> 64/55 || | +1'43" ||> 51/55, 42/39 || | ||
|| 7 || 466.667 ||= **F** || 21/16 || -4.114 || **21/16** || | || 3 || 200 | ||
|| 8 || 533.333 ||= Gb || 15/11 || -3.617 ||> 102/75 || | 60° ||= **D** || 9/8 || -3.910 | ||
|| 9 || 600 ||= F# || 17/12 or 24/17 || -3.000 +3.000 ||> 17/12 || | -1°10'23" || **9/8** || | ||
|| 10 || 666.667 ||= **G** || 22/15 || +3.617 ||> 75/51 || | || 4 || 266.667 | ||
|| 11 || 733.333 ||= Hb || 32/21 || +4.114 ||> 32/21 || | 80° ||= Eb || 7/6 || -0.204 | ||
|| 12 || 800 ||= G# || 8/5 or 35/22 || -13.686 -3.8222 || **51/32** || | -1"50" || **75/64** || | ||
|| 13 || 866.667 ||= **H** || 28/17 or 33/20 || +2.796 -0.293 ||> 64/39 || | || 5 || 333.333 | ||
|| 14 || 933.333 ||= **A** || 12/7 || +0.204 || **55/32** || | 100° ||= D# || 17/14 or 40/33 || -2.796 +0.293 | ||
|| 15 || 1000 ||= Bb || 16/9 || +3.910 ||> 16/9 || | -50'20" +5'16" || **39/32** || | ||
|| 16 || 1066.667 ||= A# || 50/27 || -0.096 ||> 39/21 || | || 6 || 400 | ||
|| 17 || 1133.333 ||= **B** || 52/27 || -1.329 ||> 75/39 || | 120° ||= **E** || 5/4 or 44/35 || +13.686 +3.822 | ||
|| 18 || 1200 ||= **C** || 2/1 || 0 || **2/1** || | +4°6'21" +1°8'47" ||> 64/55 || | ||
|| 7 || 466.667 | |||
140° ||= **F** || 21/16 || -4.114 | |||
-1°14'3" || **21/16** || | |||
|| 8 || 533.333 | |||
160° ||= Gb || 15/11 || -3.617 | |||
-1°5'7" ||> 102/75 || | |||
|| 9 || 600 | |||
180° ||= F# || 17/12 or 24/17 || -3.000 +3.000 | |||
-54' +54' ||> 17/12 || | |||
|| 10 || 666.667 | |||
200° ||= **G** || 22/15 || +3.617 | |||
+1°5'7" ||> 75/51 || | |||
|| 11 || 733.333 | |||
220° ||= Hb || 32/21 || +4.114 | |||
+1°14'3" ||> 32/21 || | |||
|| 12 || 800 | |||
240° ||= G# || 8/5 or 35/22 || -13.686 -3.8222 | |||
-4°6'21" -1°8'47" || **51/32** || | |||
|| 13 || 866.667 | |||
260° ||= **H** || 28/17 or 33/20 || +2.796 -0.293 | |||
<span style="line-height: 15.6000003814697px;">+</span>50'20" <span style="line-height: 15.6000003814697px;">-</span><span style="line-height: 1.5;">5'16"</span> ||> 64/39 || | |||
|| 14 || 933.333 | |||
280° ||= **A** || 12/7 || +0.204 | |||
+1"50" || **55/32** || | |||
|| 15 || 1000 | |||
300° ||= Bb || 16/9 || +3.910 | |||
+1°10'23" ||> 16/9 || | |||
|| 16 || 1066.667 | |||
320° ||= A# || 50/27 || -0.096 | |||
-1'43" ||> 39/21 || | |||
|| 17 || 1133.333 | |||
340° ||= **B** || 52/27 || -1.329 | |||
-23'56" ||> 75/39 || | |||
|| 18 || 1200 | |||
360° ||= **C** || 2/1 || 0 || **2/1** || | |||
*based on the above description of 18-EDO as a 2.9.75.21.55.39.51 subgroup temperament | *based on the above description of 18-EDO as a 2.9.75.21.55.39.51 subgroup temperament | ||
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==Listen== | ==Listen== | ||
* | * [[http://www.h-pi.com/mp3/18ETPrelude.mp3|18ETPrelude]] by [[Aaron Andrew Hunt]] | ||
* | * [[http://micro.soonlabel.com/18-ET/prelude-in-18et.mp3|Prelude in 18et]] by [[@http://www.chrisvaisvil.com|Chris Vaisvil]] => [[@http://chrisvaisvil.com/?p=3|composer notes]] | ||
* | * [[http://micro.soonlabel.com/18-ET/daily20110401-18c-flippertronics.mp3|Flippertronics]] by Chris Vaisvil | ||
* | * [[http://micro.soonlabel.com/9-edo/daily20111008b_gerbils_at_the_wheel_of_government.mp3|Gerbils at the Wheel of Government]] by [[@http://chrisvaisvil.com/?p=1402|Chris Vaisvil (in 9 and 18 edo simultaneously)]]</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"><html><head><title>18edo</title></head><body><!-- ws:start:WikiTextHeadingRule:0:&lt;h1&gt; --><h1 id="toc0"><a name="x18 Equal Divisions of the Octave"></a><!-- ws:end:WikiTextHeadingRule:0 -->18 Equal Divisions of the Octave</h1> | <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>18edo</title></head><body><!-- ws:start:WikiTextHeadingRule:0:&lt;h1&gt; --><h1 id="toc0"><a name="x18 Equal Divisions of the Octave"></a><!-- ws:end:WikiTextHeadingRule:0 -->18 Equal Divisions of the Octave</h1> | ||
| Line 106: | Line 143: | ||
</td> | </td> | ||
<td>Cents<br /> | <td>Cents<br /> | ||
DMS<br /> | |||
</td> | </td> | ||
<td style="text-align: center;">5L3s Notation<br /> | <td style="text-align: center;">5L3s Notation<br /> | ||
| Line 112: | Line 150: | ||
</td> | </td> | ||
<td>Error (cents)<br /> | <td>Error (cents)<br /> | ||
(DMS)<br /> | |||
</td> | </td> | ||
<td>17-Limit Ratios*<br /> | <td>17-Limit Ratios*<br /> | ||
| Line 134: | Line 173: | ||
</td> | </td> | ||
<td>66.667<br /> | <td>66.667<br /> | ||
20°<br /> | |||
</td> | </td> | ||
<td style="text-align: center;">Db<br /> | <td style="text-align: center;">Db<br /> | ||
| Line 140: | Line 180: | ||
</td> | </td> | ||
<td>+1.329<br /> | <td>+1.329<br /> | ||
+23'56&quot;<br /> | |||
</td> | </td> | ||
<td style="text-align: right;">78/75, 75/72<br /> | <td style="text-align: right;">78/75, 75/72<br /> | ||
| Line 148: | Line 189: | ||
</td> | </td> | ||
<td>133.333<br /> | <td>133.333<br /> | ||
40°<br /> | |||
</td> | </td> | ||
<td style="text-align: center;">C#<br /> | <td style="text-align: center;">C#<br /> | ||
| Line 154: | Line 196: | ||
</td> | </td> | ||
<td>+0.096<br /> | <td>+0.096<br /> | ||
+1'43&quot;<br /> | |||
</td> | </td> | ||
<td style="text-align: right;">51/55, 42/39<br /> | <td style="text-align: right;">51/55, 42/39<br /> | ||
| Line 162: | Line 205: | ||
</td> | </td> | ||
<td>200<br /> | <td>200<br /> | ||
60°<br /> | |||
</td> | </td> | ||
<td style="text-align: center;"><strong>D</strong><br /> | <td style="text-align: center;"><strong>D</strong><br /> | ||
| Line 168: | Line 212: | ||
</td> | </td> | ||
<td>-3.910<br /> | <td>-3.910<br /> | ||
-1°10'23&quot;<br /> | |||
</td> | </td> | ||
<td><strong>9/8</strong><br /> | <td><strong>9/8</strong><br /> | ||
| Line 176: | Line 221: | ||
</td> | </td> | ||
<td>266.667<br /> | <td>266.667<br /> | ||
80°<br /> | |||
</td> | </td> | ||
<td style="text-align: center;">Eb<br /> | <td style="text-align: center;">Eb<br /> | ||
| Line 182: | Line 228: | ||
</td> | </td> | ||
<td>-0.204<br /> | <td>-0.204<br /> | ||
-1&quot;50&quot;<br /> | |||
</td> | </td> | ||
<td><strong>75/64</strong><br /> | <td><strong>75/64</strong><br /> | ||
| Line 190: | Line 237: | ||
</td> | </td> | ||
<td>333.333<br /> | <td>333.333<br /> | ||
100°<br /> | |||
</td> | </td> | ||
<td style="text-align: center;">D#<br /> | <td style="text-align: center;">D#<br /> | ||
| Line 196: | Line 244: | ||
</td> | </td> | ||
<td>-2.796 +0.293<br /> | <td>-2.796 +0.293<br /> | ||
-50'20&quot; +5'16&quot;<br /> | |||
</td> | </td> | ||
<td><strong>39/32</strong><br /> | <td><strong>39/32</strong><br /> | ||
| Line 204: | Line 253: | ||
</td> | </td> | ||
<td>400<br /> | <td>400<br /> | ||
120°<br /> | |||
</td> | </td> | ||
<td style="text-align: center;"><strong>E</strong><br /> | <td style="text-align: center;"><strong>E</strong><br /> | ||
| Line 210: | Line 260: | ||
</td> | </td> | ||
<td>+13.686 +3.822<br /> | <td>+13.686 +3.822<br /> | ||
+4°6'21&quot; +1°8'47&quot;<br /> | |||
</td> | </td> | ||
<td style="text-align: right;">64/55<br /> | <td style="text-align: right;">64/55<br /> | ||
| Line 218: | Line 269: | ||
</td> | </td> | ||
<td>466.667<br /> | <td>466.667<br /> | ||
140°<br /> | |||
</td> | </td> | ||
<td style="text-align: center;"><strong>F</strong><br /> | <td style="text-align: center;"><strong>F</strong><br /> | ||
| Line 224: | Line 276: | ||
</td> | </td> | ||
<td>-4.114<br /> | <td>-4.114<br /> | ||
-1°14'3&quot;<br /> | |||
</td> | </td> | ||
<td><strong>21/16</strong><br /> | <td><strong>21/16</strong><br /> | ||
| Line 232: | Line 285: | ||
</td> | </td> | ||
<td>533.333<br /> | <td>533.333<br /> | ||
160°<br /> | |||
</td> | </td> | ||
<td style="text-align: center;">Gb<br /> | <td style="text-align: center;">Gb<br /> | ||
| Line 238: | Line 292: | ||
</td> | </td> | ||
<td>-3.617<br /> | <td>-3.617<br /> | ||
-1°5'7&quot;<br /> | |||
</td> | </td> | ||
<td style="text-align: right;">102/75<br /> | <td style="text-align: right;">102/75<br /> | ||
| Line 246: | Line 301: | ||
</td> | </td> | ||
<td>600<br /> | <td>600<br /> | ||
180°<br /> | |||
</td> | </td> | ||
<td style="text-align: center;">F#<br /> | <td style="text-align: center;">F#<br /> | ||
| Line 252: | Line 308: | ||
</td> | </td> | ||
<td>-3.000 +3.000<br /> | <td>-3.000 +3.000<br /> | ||
-54' +54'<br /> | |||
</td> | </td> | ||
<td style="text-align: right;">17/12<br /> | <td style="text-align: right;">17/12<br /> | ||
| Line 260: | Line 317: | ||
</td> | </td> | ||
<td>666.667<br /> | <td>666.667<br /> | ||
200°<br /> | |||
</td> | </td> | ||
<td style="text-align: center;"><strong>G</strong><br /> | <td style="text-align: center;"><strong>G</strong><br /> | ||
| Line 266: | Line 324: | ||
</td> | </td> | ||
<td>+3.617<br /> | <td>+3.617<br /> | ||
+1°5'7&quot;<br /> | |||
</td> | </td> | ||
<td style="text-align: right;">75/51<br /> | <td style="text-align: right;">75/51<br /> | ||
| Line 274: | Line 333: | ||
</td> | </td> | ||
<td>733.333<br /> | <td>733.333<br /> | ||
220°<br /> | |||
</td> | </td> | ||
<td style="text-align: center;">Hb<br /> | <td style="text-align: center;">Hb<br /> | ||
| Line 280: | Line 340: | ||
</td> | </td> | ||
<td>+4.114<br /> | <td>+4.114<br /> | ||
+1°14'3&quot;<br /> | |||
</td> | </td> | ||
<td style="text-align: right;">32/21<br /> | <td style="text-align: right;">32/21<br /> | ||
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</td> | </td> | ||
<td>800<br /> | <td>800<br /> | ||
240°<br /> | |||
</td> | </td> | ||
<td style="text-align: center;">G#<br /> | <td style="text-align: center;">G#<br /> | ||
| Line 294: | Line 356: | ||
</td> | </td> | ||
<td>-13.686 -3.8222<br /> | <td>-13.686 -3.8222<br /> | ||
-4°6'21&quot; -1°8'47&quot;<br /> | |||
</td> | </td> | ||
<td><strong>51/32</strong><br /> | <td><strong>51/32</strong><br /> | ||
| Line 302: | Line 365: | ||
</td> | </td> | ||
<td>866.667<br /> | <td>866.667<br /> | ||
260°<br /> | |||
</td> | </td> | ||
<td style="text-align: center;"><strong>H</strong><br /> | <td style="text-align: center;"><strong>H</strong><br /> | ||
| Line 308: | Line 372: | ||
</td> | </td> | ||
<td>+2.796 -0.293<br /> | <td>+2.796 -0.293<br /> | ||
<span style="line-height: 15.6000003814697px;">+</span>50'20&quot; <span style="line-height: 15.6000003814697px;">-</span><span style="line-height: 1.5;">5'16&quot;</span><br /> | |||
</td> | </td> | ||
<td style="text-align: right;">64/39<br /> | <td style="text-align: right;">64/39<br /> | ||
| Line 316: | Line 381: | ||
</td> | </td> | ||
<td>933.333<br /> | <td>933.333<br /> | ||
280°<br /> | |||
</td> | </td> | ||
<td style="text-align: center;"><strong>A</strong><br /> | <td style="text-align: center;"><strong>A</strong><br /> | ||
| Line 322: | Line 388: | ||
</td> | </td> | ||
<td>+0.204<br /> | <td>+0.204<br /> | ||
+1&quot;50&quot;<br /> | |||
</td> | </td> | ||
<td><strong>55/32</strong><br /> | <td><strong>55/32</strong><br /> | ||
| Line 330: | Line 397: | ||
</td> | </td> | ||
<td>1000<br /> | <td>1000<br /> | ||
300°<br /> | |||
</td> | </td> | ||
<td style="text-align: center;">Bb<br /> | <td style="text-align: center;">Bb<br /> | ||
| Line 336: | Line 404: | ||
</td> | </td> | ||
<td>+3.910<br /> | <td>+3.910<br /> | ||
+1°10'23&quot;<br /> | |||
</td> | </td> | ||
<td style="text-align: right;">16/9<br /> | <td style="text-align: right;">16/9<br /> | ||
| Line 344: | Line 413: | ||
</td> | </td> | ||
<td>1066.667<br /> | <td>1066.667<br /> | ||
320°<br /> | |||
</td> | </td> | ||
<td style="text-align: center;">A#<br /> | <td style="text-align: center;">A#<br /> | ||
| Line 350: | Line 420: | ||
</td> | </td> | ||
<td>-0.096<br /> | <td>-0.096<br /> | ||
-1'43&quot;<br /> | |||
</td> | </td> | ||
<td style="text-align: right;">39/21<br /> | <td style="text-align: right;">39/21<br /> | ||
| Line 358: | Line 429: | ||
</td> | </td> | ||
<td>1133.333<br /> | <td>1133.333<br /> | ||
340°<br /> | |||
</td> | </td> | ||
<td style="text-align: center;"><strong>B</strong><br /> | <td style="text-align: center;"><strong>B</strong><br /> | ||
| Line 364: | Line 436: | ||
</td> | </td> | ||
<td>-1.329<br /> | <td>-1.329<br /> | ||
-23'56&quot;<br /> | |||
</td> | </td> | ||
<td style="text-align: right;">75/39<br /> | <td style="text-align: right;">75/39<br /> | ||
| Line 372: | Line 445: | ||
</td> | </td> | ||
<td>1200<br /> | <td>1200<br /> | ||
360°<br /> | |||
</td> | </td> | ||
<td style="text-align: center;"><strong>C</strong><br /> | <td style="text-align: center;"><strong>C</strong><br /> | ||