Pergen names: Difference between revisions
Wikispaces>TallKite **Imported revision 621992011 - Original comment: ** |
Wikispaces>TallKite **Imported revision 621993889 - 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>2017-11-20 | : This revision was by author [[User:TallKite|TallKite]] and made on <tt>2017-11-20 02:27:46 UTC</tt>.<br> | ||
: The original revision id was <tt> | : The original revision id was <tt>621993889</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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Analogous to 22-edo, sometimes additional accidentals aren't needed, but are desirable, to avoid misspelled chords. For example, schismic is fifth-based and can be notated conventionally. But this causes 4:5:6 to be spelled as C Fb G. With ^1 = 81/80, the chord can be spelled C Ev G. | Analogous to 22-edo, sometimes additional accidentals aren't needed, but are desirable, to avoid misspelled chords. For example, schismic is fifth-based and can be notated conventionally. But this causes 4:5:6 to be spelled as C Fb G. With ^1 = 81/80, the chord can be spelled C Ev G. | ||
Not all possible combinations of periods and generators are unique pergens. {P8, WWP5/2} is actually {P8, P5/2}. {P8/2, P5/2} is actually {P8/2, P4/2}. There is no {P8, M2/2}, and {P8/2, M2/2} is actually {P8/2, P5}. This table lists all unique rank-2 pergens, | Not all possible combinations of periods and generators are unique pergens. {P8, WWP5/2} is actually {P8, P5/2}. {P8/2, P5/2} is actually {P8/2, P4/2}. There is no {P8, M2/2}, and {P8/2, M2/2} is actually {P8/2, P5}. | ||
This table lists all unique rank-2 pergens, assuming primes 2 and 3, grouped by the size of the larger splitting factor. | |||
The genchain shown is a short section of the full genchain. C - G implies ...Eb Bb F C G D A E B F# C#... And C - Eb^=Ev - G implies ...F - Ab^=Av - C - Eb^=Ev - G - Bb^=Bv - D - F^=F#v - A - C^=C#v - E... If the octave is split, the genchain shows the octave: In C - F#v=Gb^ - C, the last C is an octave above the first one. | The genchain shown is a short section of the full genchain. C - G implies ...Eb Bb F C G D A E B F# C#... And C - Eb^=Ev - G implies ...F - Ab^=Av - C - Eb^=Ev - G - Bb^=Bv - D - F^=F#v - A - C^=C#v - E... If the octave is split, the genchain shows the octave: In C - F#v=Gb^ - C, the last C is an octave above the first one. | ||
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||~ pergen set ||~ valid range | ||~ pergen set ||~ valid range | ||
of the 5th ||~ equivalences ||~ enharmonic | of the 5th ||~ equivalences ||~ enharmonic | ||
interval ||~ genchain(s) ||~ example | interval(s) ||~ genchain(s) ||~ example | ||
temperament ||~ compatible edos | temperament ||~ compatible edos | ||
(12-31 only) || | (12-31 only) || | ||
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22, 23, 24*, 25*, 26, | 22, 23, 24*, 25*, 26, | ||
27, 28*, 29, 30*, 31 || | 27, 28*, 29, 30*, 31 || | ||
||~ | ||~ halves ||~ ||~ ||~ ||~ ||~ ||~ || | ||
||= {P8/2, P5} ||= 700-720¢ ||= P8/2 = vA4 = ^d5 ||= ^^d2 ||= C - F#v=Gb^ - C ||= srutal ||= 12, 20*, 22, 24*, 30* || | ||= {P8/2, P5} ||= 700-720¢ ||= P8/2 = vA4 = ^d5 ||= ^^d2 ||= C - F#v=Gb^ - C ||= srutal ||= 12, 20*, 22, 24*, 30* || | ||
||= " ||= 600-700¢ ||= P8/2 = ^A4 = vd5 ||= vvd2 ||= C - F#^=Gbv - C ||= | ||= " ||= 600-700¢ ||= P8/2 = ^A4 = vd5 ||= vvd2 ||= C - F#^=Gbv - C ||= large deep red ||= 12, 14, 16, 18b, | ||
24*, 26, 28* || | 24*, 26, 28* || | ||
||= " ||= 600-720¢ ||= P8/2 = ^P4 = vP5 ||= vvM2 ||= C - F^=Gv - C ||= (is this needed?) ||= || | ||= " ||= 600-720¢ ||= P8/2 = ^P4 = vP5 ||= vvM2 ||= C - F^=Gv - C ||= (is this needed?) ||= || | ||
||= {P8, P5/2} ||= 4\7 - 720¢ ||= P5/2 = ^m3 = vM3 ||= vvA1 ||= C - Eb^=Ev - G ||= mohajira ||= 14*, 17, 20*, 21*, 24 | ||= {P8, P4/2} ||= ? ||= P4/2 = ^M2 = vm3 ||= vvm2 ||= C - D^=Ebv - F ||= semaphore ||= || | ||
||= " ||= ? ||= P4/2 = vA2 = ^d3 ||= ^^dd2 ||= C - D#v=Ebb^ - F ||= ||= || | |||
||= " ||= ? ||= P4/2 = ^A2 = vd3 ||= vvdd2 ||= C - D#^=Ebv - F ||= ||= || | |||
||= {P8, P5/2} ||= 4\7 - 720¢ ||= P5/2 = ^m3 = vM3 ||= vvA1 ||= C - Eb^=Ev - G ||= mohajira, dicot ||= 14*, 17, 20*, 21*, 24 | |||
27, 28*, 30*, 31 || | 27, 28*, 30*, 31 || | ||
||= " ||= 600¢ - 4\7 ||= P5/2 = ^M3 = vm3 ||= vvd1 ||= | ||= " ||= 600¢ - 4\7 ||= P5/2 = ^M3 = vm3 ||= vvd1 ||= C - E^=Ebv - G ||= ||= 14*, 18b, 21*, 28* || | ||
||= {P8/2, P4/2} ||= ||= P8/2 = vA4 = ^d5, | ||= {P8/2, P4/2} ||= ||= P8/2 = vA4 = ^d5, | ||
P4/2 = /M2 = \m3 ||= ^^d2, | P4/2 = /M2 = \m3, | ||
\\m2 ||= C - F#v=Gb^ - C, | P5/2 = ^/m3 = v\M3 ||= ^^d2, | ||
C - D/=Eb\ - F ||= bb&aaT ||= || | \\m2, | ||
||~ | vv\\A1 ||= C - F#v=Gb^ - C, | ||
C - D/=Eb\ - F, | |||
C - ^/Eb=v\E - G ||= bb&aaT ||= || | |||
||~ thirds ||~ ||~ ||~ ||~ ||~ ||~ || | |||
||= {P8/3, P5} ||= ||= ||= ||= ||= ||= 12, 15, 18b*, 21, 24*, | ||= {P8/3, P5} ||= ||= ||= ||= ||= ||= 12, 15, 18b*, 21, 24*, | ||
27, 30* || | 27, 30* || | ||
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||= {P8/2, P11/3} ||= ||= ||= ||= ||= ||= same as {P8/2, P4/3} || | ||= {P8/2, P11/3} ||= ||= ||= ||= ||= ||= same as {P8/2, P4/3} || | ||
||= {P8/3, P4/3} ||= ||= ||= ||= ||= ||= 15, 21, 30* || | ||= {P8/3, P4/3} ||= ||= ||= ||= ||= ||= 15, 21, 30* || | ||
||~ | ||~ quarters ||~ ||~ ||~ ||~ ||~ ||~ || | ||
||= {P8/4, P5} ||= ||= ||= ||= ||= ||= || | ||= {P8/4, P5} ||= ||= ||= ||= ||= ||= || | ||
||= {P8, P4/4} ||= ||= ||= ||= ||= ||= || | ||= {P8, P4/4} ||= ||= ||= ||= ||= ||= || | ||
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||= {P8, P11/4} ||= ||= ||= ||= ||= ||= || | ||= {P8, P11/4} ||= ||= ||= ||= ||= ||= || | ||
||= {P8, P12/4} ||= ||= ||= ||= ||= ||= || | ||= {P8, P12/4} ||= ||= ||= ||= ||= ||= || | ||
|| { || || || || || || || | ||= {P8/4, P4/2} ||= ||= ||= ||= ||= ||= || | ||
|| || || || || || || || | ||= {P8/2, P4/4} ||= ||= ||= ||= ||= ||= || | ||
||= {P8/2, P5/4} ||= ||= ||= ||= ||= ||= || | |||
||= ||= ||= ||= ||= ||= ||= || | |||
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Analogous to 22-edo, sometimes additional accidentals aren't needed, but are desirable, to avoid misspelled chords. For example, schismic is fifth-based and can be notated conventionally. But this causes 4:5:6 to be spelled as C Fb G. With ^1 = 81/80, the chord can be spelled C Ev G.<br /> | Analogous to 22-edo, sometimes additional accidentals aren't needed, but are desirable, to avoid misspelled chords. For example, schismic is fifth-based and can be notated conventionally. But this causes 4:5:6 to be spelled as C Fb G. With ^1 = 81/80, the chord can be spelled C Ev G.<br /> | ||
<br /> | <br /> | ||
Not all possible combinations of periods and generators are unique pergens. {P8, WWP5/2} is actually {P8, P5/2}. {P8/2, P5/2} is actually {P8/2, P4/2}. There is no {P8, M2/2}, and {P8/2, M2/2} is actually {P8/2, P5}. This table lists all unique rank-2 pergens, | Not all possible combinations of periods and generators are unique pergens. {P8, WWP5/2} is actually {P8, P5/2}. {P8/2, P5/2} is actually {P8/2, P4/2}. There is no {P8, M2/2}, and {P8/2, M2/2} is actually {P8/2, P5}. <br /> | ||
<br /> | |||
This table lists all unique rank-2 pergens, assuming primes 2 and 3, grouped by the size of the larger splitting factor.<br /> | |||
<br /> | <br /> | ||
The genchain shown is a short section of the full genchain. C - G implies ...Eb Bb F C G D A E B F# C#... And C - Eb^=Ev - G implies ...F - Ab^=Av - C - Eb^=Ev - G - Bb^=Bv - D - F^=F#v - A - C^=C#v - E... If the octave is split, the genchain shows the octave: In C - F#v=Gb^ - C, the last C is an octave above the first one.<br /> | The genchain shown is a short section of the full genchain. C - G implies ...Eb Bb F C G D A E B F# C#... And C - Eb^=Ev - G implies ...F - Ab^=Av - C - Eb^=Ev - G - Bb^=Bv - D - F^=F#v - A - C^=C#v - E... If the octave is split, the genchain shows the octave: In C - F#v=Gb^ - C, the last C is an octave above the first one.<br /> | ||
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</th> | </th> | ||
<th>enharmonic<br /> | <th>enharmonic<br /> | ||
interval<br /> | interval(s)<br /> | ||
</th> | </th> | ||
<th>genchain(s)<br /> | <th>genchain(s)<br /> | ||
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</tr> | </tr> | ||
<tr> | <tr> | ||
<th><br /> | <th>halves<br /> | ||
</th> | </th> | ||
<th><br /> | <th><br /> | ||
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<td style="text-align: center;">C - F#^=Gbv - C<br /> | <td style="text-align: center;">C - F#^=Gbv - C<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">large deep red<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">12, 14, 16, 18b,<br /> | <td style="text-align: center;">12, 14, 16, 18b,<br /> | ||
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</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;"><br /> | ||
</td> | </td> | ||
</tr> | </tr> | ||
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<td style="text-align: center;">{P8, P4/2}<br /> | <td style="text-align: center;">{P8, P4/2}<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">?<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">P4/2 = ^M2 = vm3<br /> | <td style="text-align: center;">P4/2 = ^M2 = vm3<br /> | ||
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<td style="text-align: center;">vvm2<br /> | <td style="text-align: center;">vvm2<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">D | <td style="text-align: center;">C - D^=Ebv - F<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">semaphore<br /> | <td style="text-align: center;">semaphore<br /> | ||
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<td style="text-align: center;">&quot;<br /> | <td style="text-align: center;">&quot;<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">?<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">P4/2 = vA2 = ^d3<br /> | <td style="text-align: center;">P4/2 = vA2 = ^d3<br /> | ||
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<td style="text-align: center;">^^dd2<br /> | <td style="text-align: center;">^^dd2<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">C - D#v=Ebb^ - F<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;"><br /> | ||
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<td style="text-align: center;">&quot;<br /> | <td style="text-align: center;">&quot;<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">?<br /> | ||
</td> | </td> | ||
<td style="text-align: center;">P4/2 = ^A2 = vd3<br /> | <td style="text-align: center;">P4/2 = ^A2 = vd3<br /> | ||
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<td style="text-align: center;">vvdd2<br /> | <td style="text-align: center;">vvdd2<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">C - D#^=Ebv - F<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;"><br /> | ||
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</tr> | </tr> | ||
<tr> | <tr> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">{P8, P5/2}<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">4\7 - 720¢<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">P5/2 = ^m3 = vM3<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">vvA1<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">C - Eb^=Ev - G<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">mohajira, dicot<br /> | ||
</td> | </td> | ||
<td style="text-align: center;"><br /> | <td style="text-align: center;">14*, 17, 20*, 21*, 24 <br /> | ||
27, 28*, 30*, 31<br /> | |||
</td> | </td> | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
<td><br /> | <td style="text-align: center;">&quot;<br /> | ||
</td> | </td> | ||
<td><br /> | <td style="text-align: center;">600¢ - 4\7<br /> | ||
</td> | </td> | ||
<td><br /> | <td style="text-align: center;">P5/2 = ^M3 = vm3<br /> | ||
</td> | </td> | ||
<td><br /> | <td style="text-align: center;">vvd1<br /> | ||
</td> | </td> | ||
<td><br /> | <td style="text-align: center;">C - E^=Ebv - G<br /> | ||
</td> | </td> | ||
<td><br /> | <td style="text-align: center;"><br /> | ||
</td> | </td> | ||
<td><br /> | <td style="text-align: center;">14*, 18b, 21*, 28*<br /> | ||
</td> | </td> | ||
</tr> | </tr> | ||
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</td> | </td> | ||
<td style="text-align: center;">P8/2 = vA4 = ^d5,<br /> | <td style="text-align: center;">P8/2 = vA4 = ^d5,<br /> | ||
P4/2 = /M2 = \m3<br /> | P4/2 = /M2 = \m3,<br /> | ||
P5/2 = ^/m3 = v\M3<br /> | |||
</td> | </td> | ||
<td style="text-align: center;">^^d2,<br /> | <td style="text-align: center;">^^d2,<br /> | ||
\\m2<br /> | \\m2,<br /> | ||
vv\\A1<br /> | |||
</td> | </td> | ||
<td style="text-align: center;">C - F#v=Gb^ - C,<br /> | <td style="text-align: center;">C - F#v=Gb^ - C,<br /> | ||
C - D/=Eb\ - F<br /> | C - D/=Eb\ - F,<br /> | ||
C - ^/Eb=v\E - G<br /> | |||
</td> | </td> | ||
<td style="text-align: center;">bb&amp;aaT<br /> | <td style="text-align: center;">bb&amp;aaT<br /> | ||
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</tr> | </tr> | ||
<tr> | <tr> | ||
<th><br /> | <th>thirds<br /> | ||
</th> | </th> | ||
<th><br /> | <th><br /> | ||
Line 1,110: | Line 1,088: | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
<th><br /> | <th>quarters<br /> | ||
</th> | </th> | ||
<th><br /> | <th><br /> | ||
Line 1,206: | Line 1,184: | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
<td>{<br /> | <td style="text-align: center;">{P8/4, P4/2}<br /> | ||
</td> | |||
<td style="text-align: center;"><br /> | |||
</td> | |||
<td style="text-align: center;"><br /> | |||
</td> | |||
<td style="text-align: center;"><br /> | |||
</td> | |||
<td style="text-align: center;"><br /> | |||
</td> | |||
<td style="text-align: center;"><br /> | |||
</td> | |||
<td style="text-align: center;"><br /> | |||
</td> | |||
</tr> | |||
<tr> | |||
<td style="text-align: center;">{P8/2, P4/4}<br /> | |||
</td> | |||
<td style="text-align: center;"><br /> | |||
</td> | |||
<td style="text-align: center;"><br /> | |||
</td> | |||
<td style="text-align: center;"><br /> | |||
</td> | |||
<td style="text-align: center;"><br /> | |||
</td> | |||
<td style="text-align: center;"><br /> | |||
</td> | |||
<td style="text-align: center;"><br /> | |||
</td> | |||
</tr> | |||
<tr> | |||
<td style="text-align: center;">{P8/2, P5/4}<br /> | |||
</td> | </td> | ||
<td><br /> | <td style="text-align: center;"><br /> | ||
</td> | </td> | ||
<td><br /> | <td style="text-align: center;"><br /> | ||
</td> | </td> | ||
<td><br /> | <td style="text-align: center;"><br /> | ||
</td> | </td> | ||
<td><br /> | <td style="text-align: center;"><br /> | ||
</td> | </td> | ||
<td><br /> | <td style="text-align: center;"><br /> | ||
</td> | </td> | ||
<td><br /> | <td style="text-align: center;"><br /> | ||
</td> | </td> | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
<td><br /> | <td style="text-align: center;"><br /> | ||
</td> | </td> | ||
<td><br /> | <td style="text-align: center;"><br /> | ||
</td> | </td> | ||
<td><br /> | <td style="text-align: center;"><br /> | ||
</td> | </td> | ||
<td><br /> | <td style="text-align: center;"><br /> | ||
</td> | </td> | ||
<td><br /> | <td style="text-align: center;"><br /> | ||
</td> | </td> | ||
<td><br /> | <td style="text-align: center;"><br /> | ||
</td> | </td> | ||
<td><br /> | <td style="text-align: center;"><br /> | ||
</td> | </td> | ||
</tr> | </tr> |