2L 3s: Difference between revisions
Wikispaces>JosephRuhf **Imported revision 598611060 - Original comment: ** |
Wikispaces>JosephRuhf **Imported revision 598613056 - 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:JosephRuhf|JosephRuhf]] and made on <tt>2016-11-06 15: | : This revision was by author [[User:JosephRuhf|JosephRuhf]] and made on <tt>2016-11-06 15:28:22 UTC</tt>.<br> | ||
: The original revision id was <tt> | : The original revision id was <tt>598613056</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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The [[meantone]] pentatonic scale, in which the generator approximates 4/3 but other intervals in the scale approximate 6/5 and 5/4, has by far the lowest harmonic entropy of all 5-note MOS scales, which explains the worldwide popularity of these scales and their very long history of use. It is also strictly [[Rothenberg propriety|proper]]. | The [[meantone]] pentatonic scale, in which the generator approximates 4/3 but other intervals in the scale approximate 6/5 and 5/4, has by far the lowest harmonic entropy of all 5-note MOS scales, which explains the worldwide popularity of these scales and their very long history of use. It is also strictly [[Rothenberg propriety|proper]]. | ||
||||||||||||~ Generator ||~ Cents ||~ s ||~ L-s ||~ |L-2s| ||~ | ||||||||||||~ Generator ||~ Cents ||~ s ||~ L-s ||~ |L-2s| ||~ Trichord ||~ Comments || | ||
|| 2\5 || || || || || || 480 || 240 || 0 || 240 || | || 2\5 || || || || || || 480 || 240 || 0 || 240 || 1 1 ||= || | ||
|| || || || || || 11\27 || 488.89 || 222.22 || 44.44 || 177.78 || | || || || || || || 11\27 || 488.89 || 222.22 || 44.44 || 177.78 || 6 5 ||= Slendro (insofar as it resembles a MOS) | ||
would be in this region || | would be in this region || | ||
|| || || || || 9\22 || || 490.91 || 218.18 || 54.545 || 163.64 || | || || || || || 9\22 || || 490.91 || 218.18 || 54.545 || 163.64 || 5 4 ||= || | ||
|| || || || || || 16\39 || 492.31 || 215.38 || 61.54 || 153.85 || | || || || || || || 16\39 || 492.31 || 215.38 || 61.54 || 153.85 || 9 7 ||= No-5's superpyth/dominant is around here || | ||
|| || || || 7\17 || || || 494.12 || 211.76 || 70.59 || 141.18 || | || || || || 7\17 || || || 494.12 || 211.76 || 70.59 || 141.18 || 4 3 ||= || | ||
|| || || || || || 19\46 || 495.65 || 208.7 || 78.26 || 130.435 || | || || || || || || 19\46 || 495.65 || 208.7 || 78.26 || 130.435 || 11 8 || || | ||
|| || || || || 12\29 || || 496.55 || 206.9 || 82.76 || 124.14 || | || || || || || 12\29 || || 496.55 || 206.9 || 82.76 || 124.14 || 7 5 ||= || | ||
|| || || || || || 17\41 || 497.56 || 204.88 || 87.8 || 117.07 || | || || || || || || 17\41 || 497.56 || 204.88 || 87.8 || 117.07 || 10 7 ||= Pythagorean pentatonic is around here || | ||
|| || || 5\12 || || || || 500 || 200 || 100 || 100 || | || || || 5\12 || || || || 500 || 200 || 100 || 100 || 3 2 ||= Familiar 12-equal pentatonic | ||
(also optimum rank range: L/s=3/2) || | (also optimum rank range: L/s=3/2) || | ||
|| || || || || || || 502.305 || 195.39 || 111.53 || 83.86 || pi | || || || || || || || 502.305 || 195.39 || 111.53 || 83.86 || pi 2 || || | ||
|| || || || || || 18\43 || 502.33 || 195.35 || 111.63 || 83.72 || | || || || || || || 18\43 || 502.33 || 195.35 || 111.63 || 83.72 || 11 7 || || | ||
|| || || || || 13\31 || || 503.23 || 193.55 || 116.13 || 77.42 || | || || || || || 13\31 || || 503.23 || 193.55 || 116.13 || 77.42 || 8 5 ||= Optimal meantone pentatonic | ||
is around here || | is around here || | ||
|| || || || || || || 1200/(4-phi) || 192.43 || 118.93 || 73.50 || | || || || || || || || 1200/(4-phi) || 192.43 || 118.93 || 73.50 || phi 1 ||= Golden meantone || | ||
|| || || || || || 21\50 || 504 || 192 || 120 || 72 || | || || || || || || 21\50 || 504 || 192 || 120 || 72 || 13 8 ||= || | ||
|| || || || 8\19 || || || 505.26 || 189.47 || 126.32 || 63.16 || | || || || || 8\19 || || || 505.26 || 189.47 || 126.32 || 63.16 || 5 3 ||= || | ||
|| || || || || || 19\45 || 506.67 || 186.67 || 133.33 || 53.33 || | || || || || || || 19\45 || 506.67 || 186.67 || 133.33 || 53.33 || 12 7 || || | ||
|| || || || || || || 507.18 || 185.64 || 135.9 || 49.74 || √3 | || || || || || || || 507.18 || 185.64 || 135.9 || 49.74 || √3 1 || || | ||
|| || || || || 11\26 || || 507.69 || 184.615 || 138.46 || 46.15 || | || || || || || 11\26 || || 507.69 || 184.615 || 138.46 || 46.15 || 7 4 || || | ||
|| || || || || || 14\33 || 509.09 || 181.82 || 145.455 || 36.36 || | || || || || || || 14\33 || 509.09 || 181.82 || 145.455 || 36.36 || 9 5 || || | ||
|| || 3\7 || || || || || 514.29 || 171.43 || 171.43 || 0 || | || || 3\7 || || || || || 514.29 || 171.43 || 171.43 || 0 || 2 1 ||= (Boundary of propriety: smaller | ||
generators than this are strictly proper) || | generators than this are strictly proper) || | ||
|| || || || || || 13\30 || 520 || 160 || 200 || 40 || | || || || || || || 13\30 || 520 || 160 || 200 || 40 || 9 4 || || | ||
||< ||< ||< ||< ||< 10\23 ||< ||< 521.74 ||< 156.52 ||< 208.7 ||< 52.17 ||< | ||< ||< ||< ||< ||< 10\23 ||< ||< 521.74 ||< 156.52 ||< 208.7 ||< 52.17 ||< 7 3 ||< || | ||
|| || || || || || 17\39 || 523.08 || 153.84 || 215.385 || 61.54 || | || || || || || || 17\39 || 523.08 || 153.84 || 215.385 || 61.54 || 12 5 || || | ||
|| || || || 7\16 || || || 525 || 150 || 225 || 75 || | || || || || 7\16 || || || 525 || 150 || 225 || 75 || 5 2 ||= <span style="display: block; text-align: center;">insofar as an5-note subset of pelog resembles a MOS, it would be in this region</span> || | ||
resembles a MOS | || || || || || || 18\41 || 526.83 || 146.34 || 234.15 || 87.8 || 13 5 || || | ||
|| || || || || || 18\41 || 526.83 || 146.34 || 234.15 || 87.8 || | || || || || || || || 600(25+√5)/31 || 145.7 || 235.75 || 90.05 || phi+1 1 || || | ||
|| || || || || || || 600(25+√5)/31 || 145.7 || 235.75 || 90.05 || | || || || || || 11\25 || || 528 || 144 || 240 || 96 || 8 3 || || | ||
|| || || || || 11\25 || || 528 || 144 || 240 || 96 || | || || || || || || || 528.88 || 142.24 || 244.405 || 102.17 || e 1 ||= L/s = e || | ||
|| || || || || || || 528.88 || 142.24 || 244.405 || 102.17 || e | || || || || || || 15\34 || 529.41 || 141.18 || 247.06 || 105.88 || 11 4 || || | ||
|| || || || || || 15\34 || 529.41 || 141.18 || 247.06 || 105.88 || | || || || 4\9 || || || || 533.33 || 133.33 || 266.67 || 133.33 || 3 1 ||= L/s = 3 || | ||
|| || || 4\9 || || || || 533.33 || 133.33 || 266.67 || 133.33 || | || || || || || || || 535.36 || 129.26 || 276.835 || 147.57 || pi 1 ||= <span style="display: block; text-align: center;">L/s = pi</span> || | ||
|| || || || || || || 535.36 || 129.26 || 276.835 || 147.57 || pi | || || || || || || 13\29 || 537.93 || 124.14 || 289.655 || 165.52 || 10 3 || || | ||
|| || || || || || 13\29 || 537.93 || 124.14 || 289.655 || 165.52 || | || || || || || 9\20 || || 540 || 120 || 240 || 180 || 7 2 || || | ||
|| || || || || 9\20 || || 540 || 120 || 240 || 180 || | || || || || || || 14\31 || 541.935 || 116.13 || 309.68 || 193.55 || 11 3 || || | ||
|| || || || || || 14\31 || 541.935 || 116.13 || 309.68 || 193.55 || | || || || || 5\11 || || || 545.45 || 109.09 || 327.27 || 218.18 || 4 1 ||= L/s = 4 || | ||
|| || || || 5\11 || || || 545.45 || 109.09 || 327.27 || 218.18 || | || || || || || || 11\24 || 550 || 100 || 350 || 250 || 9 2 || || | ||
|| || || || || || 11\24 || 550 || 100 || 350 || 250 || | || || || || || 6\13 || || 553.85 || 92.31 || 369.23 || 276.92 || 5 1 || || | ||
|| || || || || 6\13 || || 553.85 || 92.31 || 369.23 || 276.92 || | || || || || || || 7\15 || 560 || 80 || 480 || 400 || 6 1 || || | ||
|| || || || || || 7\15 || 560 || 80 || 480 || 400 || | |||
|| 1\2 || || || || || || 600 || 0 || 600 || 600 || 1 0 0 1 0 ||= || | || 1\2 || || || || || || 600 || 0 || 600 || 600 || 1 0 0 1 0 ||= || | ||
| Line 78: | Line 77: | ||
<th>|L-2s|<br /> | <th>|L-2s|<br /> | ||
</th> | </th> | ||
<th> | <th>Trichord<br /> | ||
</th> | </th> | ||
<th>Comments<br /> | <th>Comments<br /> | ||
| Line 104: | Line 103: | ||
<td>240<br /> | <td>240<br /> | ||
</td> | </td> | ||
<td> | <td>1 1<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;"><br /> | ||
| Line 130: | Line 129: | ||
<td>177.78<br /> | <td>177.78<br /> | ||
</td> | </td> | ||
<td> | <td>6 5<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">Slendro (insofar as it resembles a MOS)<br /> | <td style="text-align: center;">Slendro (insofar as it resembles a MOS)<br /> | ||
| Line 157: | Line 156: | ||
<td>163.64<br /> | <td>163.64<br /> | ||
</td> | </td> | ||
<td> | <td>5 4<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;"><br /> | ||
| Line 183: | Line 182: | ||
<td>153.85<br /> | <td>153.85<br /> | ||
</td> | </td> | ||
<td> | <td>9 7<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">No-5's superpyth/dominant is around here<br /> | <td style="text-align: center;">No-5's superpyth/dominant is around here<br /> | ||
| Line 209: | Line 208: | ||
<td>141.18<br /> | <td>141.18<br /> | ||
</td> | </td> | ||
<td> | <td>4 3<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;"><br /> | ||
| Line 235: | Line 234: | ||
<td>130.435<br /> | <td>130.435<br /> | ||
</td> | </td> | ||
<td> | <td>11 8<br /> | ||
</td> | </td> | ||
<td><br /> | <td><br /> | ||
| Line 261: | Line 260: | ||
<td>124.14<br /> | <td>124.14<br /> | ||
</td> | </td> | ||
<td> | <td>7 5<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;"><br /> | ||
| Line 287: | Line 286: | ||
<td>117.07<br /> | <td>117.07<br /> | ||
</td> | </td> | ||
<td> | <td>10 7<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">Pythagorean pentatonic is around here<br /> | <td style="text-align: center;">Pythagorean pentatonic is around here<br /> | ||
| Line 313: | Line 312: | ||
<td>100<br /> | <td>100<br /> | ||
</td> | </td> | ||
<td> | <td>3 2<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">Familiar 12-equal pentatonic<br /> | <td style="text-align: center;">Familiar 12-equal pentatonic<br /> | ||
| Line 340: | Line 339: | ||
<td>83.86<br /> | <td>83.86<br /> | ||
</td> | </td> | ||
<td>pi | <td>pi 2<br /> | ||
</td> | </td> | ||
<td><br /> | <td><br /> | ||
| Line 366: | Line 365: | ||
<td>83.72<br /> | <td>83.72<br /> | ||
</td> | </td> | ||
<td> | <td>11 7<br /> | ||
</td> | </td> | ||
<td><br /> | <td><br /> | ||
| Line 392: | Line 391: | ||
<td>77.42<br /> | <td>77.42<br /> | ||
</td> | </td> | ||
<td> | <td>8 5<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">Optimal meantone pentatonic<br /> | <td style="text-align: center;">Optimal meantone pentatonic<br /> | ||
| Line 419: | Line 418: | ||
<td>73.50<br /> | <td>73.50<br /> | ||
</td> | </td> | ||
<td> | <td>phi 1<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">Golden meantone<br /> | <td style="text-align: center;">Golden meantone<br /> | ||
| Line 445: | Line 444: | ||
<td>72<br /> | <td>72<br /> | ||
</td> | </td> | ||
<td> | <td>13 8<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;"><br /> | ||
| Line 471: | Line 470: | ||
<td>63.16<br /> | <td>63.16<br /> | ||
</td> | </td> | ||
<td> | <td>5 3<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;"><br /> | ||
| Line 497: | Line 496: | ||
<td>53.33<br /> | <td>53.33<br /> | ||
</td> | </td> | ||
<td> | <td>12 7<br /> | ||
</td> | </td> | ||
<td><br /> | <td><br /> | ||
| Line 523: | Line 522: | ||
<td>49.74<br /> | <td>49.74<br /> | ||
</td> | </td> | ||
<td>√3 | <td>√3 1<br /> | ||
</td> | </td> | ||
<td><br /> | <td><br /> | ||
| Line 549: | Line 548: | ||
<td>46.15<br /> | <td>46.15<br /> | ||
</td> | </td> | ||
<td> | <td>7 4<br /> | ||
</td> | </td> | ||
<td><br /> | <td><br /> | ||
| Line 575: | Line 574: | ||
<td>36.36<br /> | <td>36.36<br /> | ||
</td> | </td> | ||
<td> | <td>9 5<br /> | ||
</td> | </td> | ||
<td><br /> | <td><br /> | ||
| Line 601: | Line 600: | ||
<td>0<br /> | <td>0<br /> | ||
</td> | </td> | ||
<td> | <td>2 1<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">(Boundary of propriety: smaller<br /> | <td style="text-align: center;">(Boundary of propriety: smaller<br /> | ||
| Line 628: | Line 627: | ||
<td>40<br /> | <td>40<br /> | ||
</td> | </td> | ||
<td> | <td>9 4<br /> | ||
</td> | </td> | ||
<td><br /> | <td><br /> | ||
| Line 654: | Line 653: | ||
<td style="text-align: left;">52.17<br /> | <td style="text-align: left;">52.17<br /> | ||
</td> | </td> | ||
<td style="text-align: left;"> | <td style="text-align: left;">7 3<br /> | ||
</td> | </td> | ||
<td style="text-align: left;"><br /> | <td style="text-align: left;"><br /> | ||
| Line 680: | Line 679: | ||
<td>61.54<br /> | <td>61.54<br /> | ||
</td> | </td> | ||
<td> | <td>12 5<br /> | ||
</td> | </td> | ||
<td><br /> | <td><br /> | ||
| Line 706: | Line 705: | ||
<td>75<br /> | <td>75<br /> | ||
</td> | </td> | ||
<td> | <td>5 2<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"> | <td style="text-align: center;"><span style="display: block; text-align: center;">insofar as an5-note subset of pelog resembles a MOS, it would be in this region</span><br /> | ||
resembles a MOS | |||
</td> | </td> | ||
</tr> | </tr> | ||
| Line 733: | Line 731: | ||
<td>87.8<br /> | <td>87.8<br /> | ||
</td> | </td> | ||
<td> | <td>13 5<br /> | ||
</td> | </td> | ||
<td><br /> | <td><br /> | ||
| Line 759: | Line 757: | ||
<td>90.05<br /> | <td>90.05<br /> | ||
</td> | </td> | ||
<td> | <td>phi+1 1<br /> | ||
</td> | </td> | ||
<td><br /> | <td><br /> | ||
| Line 785: | Line 783: | ||
<td>96<br /> | <td>96<br /> | ||
</td> | </td> | ||
<td> | <td>8 3<br /> | ||
</td> | </td> | ||
<td><br /> | <td><br /> | ||
| Line 811: | Line 809: | ||
<td>102.17<br /> | <td>102.17<br /> | ||
</td> | </td> | ||
<td>e | <td>e 1<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">L/s = e<br /> | <td style="text-align: center;">L/s = e<br /> | ||
| Line 837: | Line 835: | ||
<td>105.88<br /> | <td>105.88<br /> | ||
</td> | </td> | ||
<td> | <td>11 4<br /> | ||
</td> | </td> | ||
<td><br /> | <td><br /> | ||
| Line 863: | Line 861: | ||
<td>133.33<br /> | <td>133.33<br /> | ||
</td> | </td> | ||
<td> | <td>3 1<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">L/s = 3<br /> | <td style="text-align: center;">L/s = 3<br /> | ||
| Line 889: | Line 887: | ||
<td>147.57<br /> | <td>147.57<br /> | ||
</td> | </td> | ||
<td>pi | <td>pi 1<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><span style="display: block; text-align: center;">L/s = pi</span><br /> | <td style="text-align: center;"><span style="display: block; text-align: center;">L/s = pi</span><br /> | ||
| Line 915: | Line 913: | ||
<td>165.52<br /> | <td>165.52<br /> | ||
</td> | </td> | ||
<td> | <td>10 3<br /> | ||
</td> | </td> | ||
<td><br /> | <td><br /> | ||
| Line 941: | Line 939: | ||
<td>180<br /> | <td>180<br /> | ||
</td> | </td> | ||
<td> | <td>7 2<br /> | ||
</td> | </td> | ||
<td><br /> | <td><br /> | ||
| Line 967: | Line 965: | ||
<td>193.55<br /> | <td>193.55<br /> | ||
</td> | </td> | ||
<td> | <td>11 3<br /> | ||
</td> | </td> | ||
<td><br /> | <td><br /> | ||
| Line 993: | Line 991: | ||
<td>218.18<br /> | <td>218.18<br /> | ||
</td> | </td> | ||
<td> | <td>4 1<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">L/s = 4<br /> | <td style="text-align: center;">L/s = 4<br /> | ||
| Line 1,019: | Line 1,017: | ||
<td>250<br /> | <td>250<br /> | ||
</td> | </td> | ||
<td> | <td>9 2<br /> | ||
</td> | </td> | ||
<td><br /> | <td><br /> | ||
| Line 1,045: | Line 1,043: | ||
<td>276.92<br /> | <td>276.92<br /> | ||
</td> | </td> | ||
<td> | <td>5 1<br /> | ||
</td> | </td> | ||
<td><br /> | <td><br /> | ||
| Line 1,071: | Line 1,069: | ||
<td>400<br /> | <td>400<br /> | ||
</td> | </td> | ||
<td> | <td>6 1<br /> | ||
</td> | </td> | ||
<td><br /> | <td><br /> | ||