18edo: Difference between revisions
Wikispaces>TallKite **Imported revision 602810378 - Original comment: ** |
Wikispaces>TallKite **Imported revision 602810468 - 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:TallKite|TallKite]] and made on <tt>2016-12-26 00: | : This revision was by author [[User:TallKite|TallKite]] and made on <tt>2016-12-26 00:35:14 UTC</tt>.<br> | ||
: The original revision id was <tt> | : The original revision id was <tt>602810468</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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*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 | ||
=[[#Notation]]Notation= | =[[#Notation]]Notation= | ||
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The second approach preserves the __harmonic__ meaning of sharp/flat, major/minor and aug/dim, in that the former is always further fifthwards on the chain of fifths than the latter. Sharp is lower in pitch than flat, and major/aug is narrower than minor/dim. While this approach may seem bizarre at first, interval arithmetic and chord names work as usual. Furthermore, conventional 12edo music can be directly translated to 18edo "on the fly". | The second approach preserves the __harmonic__ meaning of sharp/flat, major/minor and aug/dim, in that the former is always further fifthwards on the chain of fifths than the latter. Sharp is lower in pitch than flat, and major/aug is narrower than minor/dim. While this approach may seem bizarre at first, interval arithmetic and chord names work as usual. Furthermore, conventional 12edo music can be directly translated to 18edo "on the fly". | ||
||= Degree ||= Cents ||||||= [[xenharmonic/Ups and Downs Notation|Up/down notation]] using the narrow 5th of 10\18, | ||= Degree ||= Cents ||||||= [[xenharmonic/Ups and Downs Notation|Up/down notation]] using the narrow 5th of 10\18, | ||
with major wider than minor ||||||= Up/down notation using the narrow 5th of 10\18, | with major wider than minor ||||||= Up/down notation using the narrow 5th of 10\18, | ||
with major wider than minor || | with major wider than minor || | ||
||= 0 ||= 0 ||= perfect unison ||= P1 ||= D ||= perfect unison ||= P1 ||= D || | ||= 0 ||= 0 ||= perfect unison ||= P1 ||= D ||= perfect unison ||= P1 ||= D || | ||
||= 1 ||= 67 ||= up unison ||= ^1 ||= | ||= 1 ||= 67 ||= up unison, downminor 2nd ||= ^1, vm2 ||= D^, Ev ||= up unison, downmajor 2nd ||= ^1, vM2 ||= D^, Ev || | ||
||= 2 ||= 133 ||= minor 2nd ||= | ||= 2 ||= 133 ||= minor 2nd ||= m2 ||= E ||= major 2nd ||= M2 ||= E || | ||
||= 3 ||= 200 ||= mid 2nd ||= | ||= 3 ||= 200 ||= mid 2nd ||= ~2 ||= E^ ||= mid 2nd ||= ~2 ||= E^ || | ||
||= 4 ||= 267 ||= major 2nd, minor 3rd ||= | ||= 4 ||= 267 ||= major 2nd, minor 3rd ||= M2, m3 ||= E#, Fb ||= minor 2nd, major 3rd ||= m2, M3 ||= Eb, F# || | ||
||= 5 ||= 333 ||= mid 3rd ||= | ||= 5 ||= 333 ||= mid 3rd ||= ~3 ||= Fv ||= mid 3rd ||= ~3 ||= Fv || | ||
||= 6 ||= 400 ||= major 3rd ||= | ||= 6 ||= 400 ||= major 3rd ||= M3 ||= F ||= minor 3rd ||= m3 ||= F || | ||
||= 7 ||= 467 ||= upmajor 3rd, down 4th ||= | ||= 7 ||= 467 ||= upmajor 3rd, down 4th ||= ^M3, v4 ||= F^, Gv ||= upminor 3rd, down 4th ||= ^m3, v4 ||= F^, Gv || | ||
||= 8 ||= 533 ||= perfect 4th ||= | ||= 8 ||= 533 ||= perfect 4th ||= P4 ||= G ||= perfect 4th ||= P4 ||= G || | ||
||= 9 ||= 600 ||= up 4th, down 5th ||= | ||= 9 ||= 600 ||= up 4th, down 5th ||= ^4, v5 ||= G^, Av ||= up 4th, down 5th ||= ^4, v5 ||= G^, Av || | ||
||= 10 ||= 667 ||= perfect 5th ||= | ||= 10 ||= 667 ||= perfect 5th ||= P5 ||= A ||= perfect 5th ||= P5 ||= A || | ||
||= 11 ||= 733 ||= up 5th ||= | ||= 11 ||= 733 ||= up 5th ||= ^5, vm6 ||= A^, Bv ||= up fifth, downmajor 6th ||= ^5, vM6 ||= A^, Bv || | ||
||= 12 ||= 800 ||= minor 6th ||= | ||= 12 ||= 800 ||= minor 6th ||= m6 ||= B ||= major 6th ||= M6 ||= B || | ||
||= 13 ||= 867 ||= mid 6th ||= | ||= 13 ||= 867 ||= mid 6th ||= ~6 ||= B^ ||= mid 6th ||= ~6 ||= B^ || | ||
||= 14 ||= 933 ||= major 6th, minor 7th ||= | ||= 14 ||= 933 ||= major 6th, minor 7th ||= M6, m7 ||= B#, Cb ||= minor 6th, major 7th ||= m6, M7 ||= Bb, C# || | ||
||= 15 ||= 1000 ||= mid 7th ||= | ||= 15 ||= 1000 ||= mid 7th ||= ~7 ||= Cv ||= mid 7th ||= ~7 ||= Cv || | ||
||= 16 ||= 1067 ||= major 7th ||= | ||= 16 ||= 1067 ||= major 7th ||= M7 ||= C ||= minor 7th ||= m7, d8 ||= C || | ||
||= 17 ||= 1133 ||= down 8ve ||= | ||= 17 ||= 1133 ||= upmajor 7th, down 8ve ||= ^M7, v8 ||= C^, Dv ||= upminor 7th, down 8ve ||= ^m7, v8 ||= C^, Dv || | ||
||= 18 ||= 1200 ||= perfect 8ve ||= | ||= 18 ||= 1200 ||= perfect 8ve ||= P8 ||= D ||= perfect 8ve ||= P8 ||= D || | ||
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*based on the above description of 18-EDO as a 2.9.75.21.55.39.51 subgroup temperament<br /> | *based on the above description of 18-EDO as a 2.9.75.21.55.39.51 subgroup temperament<br /> | ||
<br /> | <br /> | ||
<br /> | <br /> | ||
<!-- ws:start:WikiTextHeadingRule:4:&lt;h1&gt; --><h1 id="toc2"><a name="Notation"></a><!-- ws:end:WikiTextHeadingRule:4 --><!-- ws:start:WikiTextAnchorRule:38:&lt;img src=&quot;/i/anchor.gif&quot; class=&quot;WikiAnchor&quot; alt=&quot;Anchor&quot; id=&quot;wikitext@@anchor@@Notation&quot; title=&quot;Anchor: Notation&quot;/&gt; --><a name="Notation"></a><!-- ws:end:WikiTextAnchorRule:38 -->Notation</h1> | <!-- ws:start:WikiTextHeadingRule:4:&lt;h1&gt; --><h1 id="toc2"><a name="Notation"></a><!-- ws:end:WikiTextHeadingRule:4 --><!-- ws:start:WikiTextAnchorRule:38:&lt;img src=&quot;/i/anchor.gif&quot; class=&quot;WikiAnchor&quot; alt=&quot;Anchor&quot; id=&quot;wikitext@@anchor@@Notation&quot; title=&quot;Anchor: Notation&quot;/&gt; --><a name="Notation"></a><!-- ws:end:WikiTextAnchorRule:38 -->Notation</h1> | ||
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The second approach preserves the <u>harmonic</u> meaning of sharp/flat, major/minor and aug/dim, in that the former is always further fifthwards on the chain of fifths than the latter. Sharp is lower in pitch than flat, and major/aug is narrower than minor/dim. While this approach may seem bizarre at first, interval arithmetic and chord names work as usual. Furthermore, conventional 12edo music can be directly translated to 18edo &quot;on the fly&quot;.<br /> | The second approach preserves the <u>harmonic</u> meaning of sharp/flat, major/minor and aug/dim, in that the former is always further fifthwards on the chain of fifths than the latter. Sharp is lower in pitch than flat, and major/aug is narrower than minor/dim. While this approach may seem bizarre at first, interval arithmetic and chord names work as usual. Furthermore, conventional 12edo music can be directly translated to 18edo &quot;on the fly&quot;.<br /> | ||
<br /> | <br /> | ||
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<td style="text-align: center;">67<br /> | <td style="text-align: center;">67<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">up unison<br /> | <td style="text-align: center;">up unison, downminor 2nd<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">^1<br /> | <td style="text-align: center;">^1, vm2<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">D^, Ev<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">up unison<br /> | <td style="text-align: center;">up unison, downmajor 2nd<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">^1<br /> | <td style="text-align: center;">^1, vM2<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">D^<br /> | <td style="text-align: center;">D^, Ev<br /> | ||
</td> | </td> | ||
</tr> | </tr> | ||
| Line 654: | Line 633: | ||
<td style="text-align: center;">minor 2nd<br /> | <td style="text-align: center;">minor 2nd<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">m2<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">E<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"> | <td style="text-align: center;">major 2nd<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"> | <td style="text-align: center;">M2<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"> | <td style="text-align: center;">E<br /> | ||
</td> | </td> | ||
</tr> | </tr> | ||
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<td style="text-align: center;">mid 2nd<br /> | <td style="text-align: center;">mid 2nd<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">~2<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">E^<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">mid 2nd<br /> | <td style="text-align: center;">mid 2nd<br /> | ||
| Line 690: | Line 669: | ||
<td style="text-align: center;">major 2nd, minor 3rd<br /> | <td style="text-align: center;">major 2nd, minor 3rd<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">M2, m3<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">E#, Fb<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">minor 2nd, major 3rd<br /> | <td style="text-align: center;">minor 2nd, major 3rd<br /> | ||
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<td style="text-align: center;">mid 3rd<br /> | <td style="text-align: center;">mid 3rd<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">~3<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">Fv<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">mid 3rd<br /> | <td style="text-align: center;">mid 3rd<br /> | ||
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<td style="text-align: center;">major 3rd<br /> | <td style="text-align: center;">major 3rd<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">M3<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">F<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">minor 3rd<br /> | <td style="text-align: center;">minor 3rd<br /> | ||
| Line 744: | Line 723: | ||
<td style="text-align: center;">upmajor 3rd, down 4th<br /> | <td style="text-align: center;">upmajor 3rd, down 4th<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">^M3, v4<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">F^, Gv<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">upminor 3rd, down 4th<br /> | <td style="text-align: center;">upminor 3rd, down 4th<br /> | ||
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<td style="text-align: center;">perfect 4th<br /> | <td style="text-align: center;">perfect 4th<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">P4<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">G<br /> | <td style="text-align: center;">G<br /> | ||
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<td style="text-align: center;">up 4th, down 5th<br /> | <td style="text-align: center;">up 4th, down 5th<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">^4, v5<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">G^, Av<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">up 4th, down 5th<br /> | <td style="text-align: center;">up 4th, down 5th<br /> | ||
| Line 798: | Line 777: | ||
<td style="text-align: center;">perfect 5th<br /> | <td style="text-align: center;">perfect 5th<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">P5<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">A<br /> | <td style="text-align: center;">A<br /> | ||
| Line 816: | Line 795: | ||
<td style="text-align: center;">up 5th<br /> | <td style="text-align: center;">up 5th<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">^5, vm6<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">A^, Bv<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">up fifth, downmajor 6th<br /> | <td style="text-align: center;">up fifth, downmajor 6th<br /> | ||
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<td style="text-align: center;">^5, vM6<br /> | <td style="text-align: center;">^5, vM6<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">A^, | <td style="text-align: center;">A^, Bv<br /> | ||
</td> | </td> | ||
</tr> | </tr> | ||
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<td style="text-align: center;">minor 6th<br /> | <td style="text-align: center;">minor 6th<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">m6<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">B<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">major 6th<br /> | <td style="text-align: center;">major 6th<br /> | ||
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<td style="text-align: center;">mid 6th<br /> | <td style="text-align: center;">mid 6th<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">~6<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">B^<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">mid 6th<br /> | <td style="text-align: center;">mid 6th<br /> | ||
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<td style="text-align: center;">~6<br /> | <td style="text-align: center;">~6<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"> | <td style="text-align: center;">B^<br /> | ||
</td> | </td> | ||
</tr> | </tr> | ||
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<td style="text-align: center;">major 6th, minor 7th<br /> | <td style="text-align: center;">major 6th, minor 7th<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">M6, m7<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">B#, Cb<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">minor 6th, major 7th<br /> | <td style="text-align: center;">minor 6th, major 7th<br /> | ||
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<td style="text-align: center;">mid 7th<br /> | <td style="text-align: center;">mid 7th<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">~7<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">Cv<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">mid 7th<br /> | <td style="text-align: center;">mid 7th<br /> | ||
| Line 906: | Line 885: | ||
<td style="text-align: center;">major 7th<br /> | <td style="text-align: center;">major 7th<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">M7<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">C<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">minor 7th | <td style="text-align: center;">minor 7th<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">m7, d8<br /> | <td style="text-align: center;">m7, d8<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">C | <td style="text-align: center;">C<br /> | ||
</td> | </td> | ||
</tr> | </tr> | ||
| Line 922: | Line 901: | ||
<td style="text-align: center;">1133<br /> | <td style="text-align: center;">1133<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">down 8ve<br /> | <td style="text-align: center;">upmajor 7th, down 8ve<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">^M7, v8<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">C^, Dv<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">down 8ve<br /> | <td style="text-align: center;">upminor 7th, down 8ve<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">v8<br /> | <td style="text-align: center;">^m7, v8<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">Dv<br /> | <td style="text-align: center;">C^, Dv<br /> | ||
</td> | </td> | ||
</tr> | </tr> | ||
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<td style="text-align: center;">perfect 8ve<br /> | <td style="text-align: center;">perfect 8ve<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">P8<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">D<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">perfect 8ve<br /> | <td style="text-align: center;">perfect 8ve<br /> | ||
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</table> | </table> | ||
<br /> | <br /> | ||
<br /> | <br /> | ||