Kite's ups and downs notation: Difference between revisions

Wikispaces>TallKite
**Imported revision 594507750 - Original comment: **
Wikispaces>TallKite
**Imported revision 594511442 - 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>2016-10-06 16:38:54 UTC</tt>.<br>
: This revision was by author [[User:TallKite|TallKite]] and made on <tt>2016-10-06 17:44:54 UTC</tt>.<br>
: The original revision id was <tt>594507750</tt>.<br>
: The original revision id was <tt>594511442</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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||= A minor chord ||= A major ||= A C# E ||= A Cb E ||
||= A minor chord ||= A major ||= A C# E ||= A Cb E ||
||= Eb major chord ||= E# minor ||= E# G# B# ||= Eb Gb Db ||
||= Eb major chord ||= E# minor ||= E# G# B# ||= Eb Gb Db ||
||= G7 = G + M3 + P5 + m7 ||= G + m3 + P5 + M7 ||= G Bb D F# ||= G B# D Fb ||
||= Gm7 = G + m3 + P5 + m7 ||= G + M3 + P5 + M7 ||= G B D F# ||= G B D Fb ||
||= Ab aug = Ab + M3 + A5 ||= A# + m3 + d5 ||= A# C# E ||= Ab Cb E ||
||= Ab7aug = Ab + M3 + A5 + m7 ||= A# + m3 + d5 + M7 ||= A# C# E G## ||= Ab Cb E Gbb ||
||= C major scale = C + M2 + M3
||= C major scale = C + M2 + M3
+ P4 + P5 + M6 + M7 + P8 ||= C + m2 + m3 + P4
+ P4 + P5 + M6 + M7 + P8 ||= C + m2 + m3 + P4
Line 151: Line 151:
G Ab Bb C ||= C D# E# F
G Ab Bb C ||= C D# E# F
G A# B# C ||
G A# B# C ||
||= C# minor scale = C# + M2 + m3
||= C minor scale = C + M2 + m3
+ P4 + P5 + m6 + m7 + P8 ||= Cb + m2 + M3 + P4  
+ P4 + P5 + m6 + m7 + P8 ||= C + m2 + M3 + P4  
+ P5 + M6 + M7 + P8 ||= Cb Dbb Eb Fb
+ P5 + M6 + M7 + P8 ||= C Db E F
Gb Ab Bb Cb ||= C# D## E# F#
G A B C ||= C D# E F
G# A# B# C# ||
G A B C ||


Both approaches have their merit, but the first one will be used here.
Both approaches have their merit, but the first one will be used here.
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Natural generators can be used for other EDOs as well. For all EDOs with chroma 1, -1 or 0, the natural generator is the fifth, the same as standard notation. For all chroma-2 and chroma-5 edos, the natural generator is a 3rd. For chroma-3 and chroma-4, it's a 2nd. For chromas 6, 7 or 8, it's the fifth closest to 7-edo's fifth, not the one closest to 3/2. This is the down-fifth in standard notation. For 42-edo, vP5 = 24\42. For 72-edo, vP5 = 41\72.
Natural generators can be used for other EDOs as well. For all EDOs with chroma 1, -1 or 0, the natural generator is the fifth, the same as standard notation. For all chroma-2 and chroma-5 edos, the natural generator is a 3rd. For chroma-3 and chroma-4, it's a 2nd. For chromas 6, 7 or 8, it's the fifth closest to 7-edo's fifth, not the one closest to 3/2. This is the down-fifth in standard notation. For 42-edo, vP5 = 24\42. For 72-edo, vP5 = 41\72.


__**Chroma-2 and chroma-5 edos:**__
__**Chroma-2 edos:**__
genchain of thirds: m5 - m7 - m2 - m4 - P6 - P1 - P3 - M5 - M7 - M2 - M4 - d6 etc.
genchain of thirds: m5 - m7 - m2 - m4 - P6 - P1 - P3 - M5 - M7 - M2 - M4 - A6 - A1 etc.
Eb - Gb - Bb - Db - Fb - Ab - Cb - E - G - B - D - F - A - C - E# - G# - B# - D# - F# - A# - C
Eb - Gb - Bb - Db - Fb - Ab - Cb - E - G - B - D - F - A - C - E# - G# - B# - D# - F# - A# - C#
"Every Good Boy Deserves Fudge And Candy"  
"Every Good Boy Deserves Fudge And Candy"  


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P1 - m2 - M2 - P3 - m4 - M4/m5 - M5 - P6 - m7 - M7 - P8
P1 - m2 - M2 - P3 - m4 - M4/m5 - M5 - P6 - m7 - M7 - P8


__**17-edo**__: (generator = 3\17 = perfect 3rd)
__**17-edo**__: (generator = 5\17 = perfect 3rd)
D * E * * F * G * * A * B * * C * D
D * E * * F * G * * A * B * * C * D
P1 - A1/d2 - m2 - M2 - A2/d3 - P3 - A3/d4 - m4 - M4 - m5 - M5 - A5/d6 - P6 - A6/d7 - m7 - M7 - A7/d8 - P8
P1 - A1/d2 - m2 - M2 - A2/d3 - P3 - A3/d4 - m4 - M4 - m5 - M5 - A5/d6 - P6 - A6/d7 - m7 - M7 - A7/d8 - P8
__**24-edo**__: (generator = 7\24 = perfect 3rd)
D * * E * * * F * * G * * * A * * B * * * C * * D
P1 - A1 - d2 - m2 - M2 - A2 - d3 - P3 - A3 - d4 - m4 - M4 - A4/d5 - m5 - M5 - A5 - d6 - P6 - A6 - d7 - m7 - M7 - A7 - d8 - P8
__**31-edo**__: (generator = 9\31 = perfect 3rd)
D * * * E * * * * F * * * G * * * * A * * * B * * * * C * * * D
P1 - A1 - AA1/dd2 - d2 - m2 - M2 - A2 - AA2/dd3 - d3 - P3 - A3 - AA3/dd4 - d4 - m4 - M4 - A4 - d5 - m5 - M5 - A5...
etc.
__**Chroma-5 edos:**__
genchain of thirds: A1 - A3 - M5 - M7 - M2 - M4 - P6 - P1 - P3 - m5 - m7 - m2 - m4 - d6 - d8 etc.
E# - G# - B# - D# - F# - A# - C# - E - G - B - D - F - A - C - Eb - Gb - Bb - Db - Fb - Ab - Cb
"Every Good Boy Deserves Fudge And Candy"


__**18-edo**__: see above
__**18-edo**__: see above


__**17-edo**__: (generator = 3\17 = perfect 3rd)
__**25-edo**__: (generator = 7\25 = perfect 3rd)
D * E * * F * G * * A * B * * C * D
D * * * E * * F * * * G * * A * * * B * * C * * * D
P1 - A1/d2 - m2 - M2 - A2/d3 - P3 - A3/d4 - m4 - M4 - m5 - M5 - A5/d6 - P6 - A6/d7 - m7 - M7 - A7/d8 - P8
P1 - A1 - d2 - m2 - M2 - A2 - d3 - P3 - A3 - d4 - m4 - M4 - A4 - d5 - m5 - M5 - A5 - d6 - P6 - A6 - d7 - m7 - M7 - A7 - d8 - P8
 
etc.
 
__**Chroma-3 edos**__**:**
genchain of seconds: A1 - A2 - M3 - M4 - M5 - M6 - P7 - P1 - P2 - m3 - m4 - m5 - m6 - d7 - d8 etc.
D# - E# - F# - G# - A - B - C - D - E - F - G - Ab - Bb - Cb - Db etc.
 
**__15-edo__:** (generator = 2\15 = perfect 2nd)
D * E * F * G * * A * B * C * D
P1 - A1/d2 - P2 - A2/d3 - m3 - M3 - m4 - M4 - m5 - M5 - m6 - M6 - A6/d7 - P7 - A7/d8 - P8


**__22-edo__:** (generator = 3\22 = perfect 2nd)
D * * E * * F * * G * * * A * * B * * C * * D
P1 - A1 - d2 - P2 - A2 - d3 - m3 - M3 - A3/d4 - m4 - M4 - A4/d5 - m5 - M5 - A5/d6 - m6 - M6 - A6 - d7 - P7 - A7 - d8 - P8


etc.


For 22-edo, it's a 3\22 2nd
__**Chroma-4 edos**__**:**
genchain: ...D# E# F# G# A B C D E F G Ab Bb Cb Db...
genchain of seconds: d8 - d2 - m3 - m4 - m5 - m6 - P7 - P1 - P2 - M3 - M4 - M5 - M6 - A7 - A1 etc.
scale: D * * E * * F * * G * * * A * * B * * C * * D
Db - Eb - Fb - Gb - A - B - C - D - E - F - G - A# - B# - C# - D# etc.


**__20-edo__:** (generator = 3\20 = perfect 2nd)
D * * E * * F * * G * A * * B * * C * * D
P1 - A1 - d2 - P2 - A2/d3 - m3 - M3 - A3/d4 - m4 - M4 - A4/d5 - m5 - M5 - A5/d6 - m6 - M6 - A6/d7 - P7 - A7 - d8 - P8


For 17-edo, the natural generator is the 5\17 3rd.
**__27-edo__:** (generator = 4\27 = perfect 2nd)
D * * * E * * * F * * * G * * A * * * B * * * C * * * D
P1 - A1 - AA1/dd2 - d2 - P2 - A2 - d3 - m3 - M3 - A3 - d4 - m4 - M4 - A4 - d5 - m5 - M5 - A5 etc.


For 15-edo, it's the 2\15 2nd.
etc.
For 12-edo, it's the 7\12 5th, which generates standard notation.
For 16-edo, it's the 9\16 5th.
For 21-edo, it's the 3\21 2nd, the 6\21 3rd, the 9\21 4th, the 12\21 5th, etc. All these intervals generate the same scale, and the same notation.


You can easily find the natural generator using the scale tree. It's also related to the chroma. But it doesn't intrinsically depend on any ratios or commas, or on the prime limit.


=__Ups and downs solfege__=  
=__Ups and downs solfege__=  
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     &lt;/tr&gt;
     &lt;/tr&gt;
     &lt;tr&gt;
     &lt;tr&gt;
         &lt;td style="text-align: center;"&gt;G7 = G + M3 + P5 + m7&lt;br /&gt;
         &lt;td style="text-align: center;"&gt;Gm7 = G + m3 + P5 + m7&lt;br /&gt;
&lt;/td&gt;
&lt;/td&gt;
         &lt;td style="text-align: center;"&gt;G + m3 + P5 + M7&lt;br /&gt;
         &lt;td style="text-align: center;"&gt;G + M3 + P5 + M7&lt;br /&gt;
&lt;/td&gt;
&lt;/td&gt;
         &lt;td style="text-align: center;"&gt;G Bb D F#&lt;br /&gt;
         &lt;td style="text-align: center;"&gt;G B D F#&lt;br /&gt;
&lt;/td&gt;
&lt;/td&gt;
         &lt;td style="text-align: center;"&gt;G B# D Fb&lt;br /&gt;
         &lt;td style="text-align: center;"&gt;G B D Fb&lt;br /&gt;
&lt;/td&gt;
&lt;/td&gt;
     &lt;/tr&gt;
     &lt;/tr&gt;
     &lt;tr&gt;
     &lt;tr&gt;
         &lt;td style="text-align: center;"&gt;Ab aug = Ab + M3 + A5&lt;br /&gt;
         &lt;td style="text-align: center;"&gt;Ab7aug = Ab + M3 + A5 + m7&lt;br /&gt;
&lt;/td&gt;
&lt;/td&gt;
         &lt;td style="text-align: center;"&gt;A# + m3 + d5&lt;br /&gt;
         &lt;td style="text-align: center;"&gt;A# + m3 + d5 + M7&lt;br /&gt;
&lt;/td&gt;
&lt;/td&gt;
         &lt;td style="text-align: center;"&gt;A# C# E&lt;br /&gt;
         &lt;td style="text-align: center;"&gt;A# C# E G##&lt;br /&gt;
&lt;/td&gt;
&lt;/td&gt;
         &lt;td style="text-align: center;"&gt;Ab Cb E&lt;br /&gt;
         &lt;td style="text-align: center;"&gt;Ab Cb E Gbb&lt;br /&gt;
&lt;/td&gt;
&lt;/td&gt;
     &lt;/tr&gt;
     &lt;/tr&gt;
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     &lt;/tr&gt;
     &lt;/tr&gt;
     &lt;tr&gt;
     &lt;tr&gt;
         &lt;td style="text-align: center;"&gt;C# minor scale = C# + M2 + m3&lt;br /&gt;
         &lt;td style="text-align: center;"&gt;C minor scale = C + M2 + m3&lt;br /&gt;
+ P4 + P5 + m6 + m7 + P8&lt;br /&gt;
+ P4 + P5 + m6 + m7 + P8&lt;br /&gt;
&lt;/td&gt;
&lt;/td&gt;
         &lt;td style="text-align: center;"&gt;Cb + m2 + M3 + P4 &lt;br /&gt;
         &lt;td style="text-align: center;"&gt;C + m2 + M3 + P4 &lt;br /&gt;
+ P5 + M6 + M7 + P8&lt;br /&gt;
+ P5 + M6 + M7 + P8&lt;br /&gt;
&lt;/td&gt;
&lt;/td&gt;
         &lt;td style="text-align: center;"&gt;Cb Dbb Eb Fb&lt;br /&gt;
         &lt;td style="text-align: center;"&gt;C Db E F&lt;br /&gt;
Gb Ab Bb Cb&lt;br /&gt;
G A B C&lt;br /&gt;
&lt;/td&gt;
&lt;/td&gt;
         &lt;td style="text-align: center;"&gt;C# D## E# F#&lt;br /&gt;
         &lt;td style="text-align: center;"&gt;C D# E F&lt;br /&gt;
G# A# B# C#&lt;br /&gt;
G A B C&lt;br /&gt;
&lt;/td&gt;
&lt;/td&gt;
     &lt;/tr&gt;
     &lt;/tr&gt;
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Natural generators can be used for other EDOs as well. For all EDOs with chroma 1, -1 or 0, the natural generator is the fifth, the same as standard notation. For all chroma-2 and chroma-5 edos, the natural generator is a 3rd. For chroma-3 and chroma-4, it's a 2nd. For chromas 6, 7 or 8, it's the fifth closest to 7-edo's fifth, not the one closest to 3/2. This is the down-fifth in standard notation. For 42-edo, vP5 = 24\42. For 72-edo, vP5 = 41\72.&lt;br /&gt;
Natural generators can be used for other EDOs as well. For all EDOs with chroma 1, -1 or 0, the natural generator is the fifth, the same as standard notation. For all chroma-2 and chroma-5 edos, the natural generator is a 3rd. For chroma-3 and chroma-4, it's a 2nd. For chromas 6, 7 or 8, it's the fifth closest to 7-edo's fifth, not the one closest to 3/2. This is the down-fifth in standard notation. For 42-edo, vP5 = 24\42. For 72-edo, vP5 = 41\72.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;u&gt;&lt;strong&gt;Chroma-2 and chroma-5 edos:&lt;/strong&gt;&lt;/u&gt;&lt;br /&gt;
&lt;u&gt;&lt;strong&gt;Chroma-2 edos:&lt;/strong&gt;&lt;/u&gt;&lt;br /&gt;
genchain of thirds: m5 - m7 - m2 - m4 - P6 - P1 - P3 - M5 - M7 - M2 - M4 - d6 etc.&lt;br /&gt;
genchain of thirds: m5 - m7 - m2 - m4 - P6 - P1 - P3 - M5 - M7 - M2 - M4 - A6 - A1 etc.&lt;br /&gt;
Eb - Gb - Bb - Db - Fb - Ab - Cb - E - G - B - D - F - A - C - E# - G# - B# - D# - F# - A# - C&lt;br /&gt;
Eb - Gb - Bb - Db - Fb - Ab - Cb - E - G - B - D - F - A - C - E# - G# - B# - D# - F# - A# - C#&lt;br /&gt;
&amp;quot;Every Good Boy Deserves Fudge And Candy&amp;quot; &lt;br /&gt;
&amp;quot;Every Good Boy Deserves Fudge And Candy&amp;quot; &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Line 3,807: Line 3,837:
P1 - m2 - M2 - P3 - m4 - M4/m5 - M5 - P6 - m7 - M7 - P8&lt;br /&gt;
P1 - m2 - M2 - P3 - m4 - M4/m5 - M5 - P6 - m7 - M7 - P8&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;u&gt;&lt;strong&gt;17-edo&lt;/strong&gt;&lt;/u&gt;: (generator = 3\17 = perfect 3rd)&lt;br /&gt;
&lt;u&gt;&lt;strong&gt;17-edo&lt;/strong&gt;&lt;/u&gt;: (generator = 5\17 = perfect 3rd)&lt;br /&gt;
D * E * * F * G * * A * B * * C * D&lt;br /&gt;
D * E * * F * G * * A * B * * C * D&lt;br /&gt;
P1 - A1/d2 - m2 - M2 - A2/d3 - P3 - A3/d4 - m4 - M4 - m5 - M5 - A5/d6 - P6 - A6/d7 - m7 - M7 - A7/d8 - P8&lt;br /&gt;
P1 - A1/d2 - m2 - M2 - A2/d3 - P3 - A3/d4 - m4 - M4 - m5 - M5 - A5/d6 - P6 - A6/d7 - m7 - M7 - A7/d8 - P8&lt;br /&gt;
&lt;br /&gt;
&lt;u&gt;&lt;strong&gt;24-edo&lt;/strong&gt;&lt;/u&gt;: (generator = 7\24 = perfect 3rd)&lt;br /&gt;
D * * E * * * F * * G * * * A * * B * * * C * * D&lt;br /&gt;
P1 - A1 - d2 - m2 - M2 - A2 - d3 - P3 - A3 - d4 - m4 - M4 - A4/d5 - m5 - M5 - A5 - d6 - P6 - A6 - d7 - m7 - M7 - A7 - d8 - P8&lt;br /&gt;
&lt;br /&gt;
&lt;u&gt;&lt;strong&gt;31-edo&lt;/strong&gt;&lt;/u&gt;: (generator = 9\31 = perfect 3rd)&lt;br /&gt;
D * * * E * * * * F * * * G * * * * A * * * B * * * * C * * * D&lt;br /&gt;
P1 - A1 - AA1/dd2 - d2 - m2 - M2 - A2 - AA2/dd3 - d3 - P3 - A3 - AA3/dd4 - d4 - m4 - M4 - A4 - d5 - m5 - M5 - A5...&lt;br /&gt;
&lt;br /&gt;
etc.&lt;br /&gt;
&lt;br /&gt;
&lt;u&gt;&lt;strong&gt;Chroma-5 edos:&lt;/strong&gt;&lt;/u&gt;&lt;br /&gt;
genchain of thirds: A1 - A3 - M5 - M7 - M2 - M4 - P6 - P1 - P3 - m5 - m7 - m2 - m4 - d6 - d8 etc.&lt;br /&gt;
E# - G# - B# - D# - F# - A# - C# - E - G - B - D - F - A - C - Eb - Gb - Bb - Db - Fb - Ab - Cb&lt;br /&gt;
&amp;quot;Every Good Boy Deserves Fudge And Candy&amp;quot;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;u&gt;&lt;strong&gt;18-edo&lt;/strong&gt;&lt;/u&gt;: see above&lt;br /&gt;
&lt;u&gt;&lt;strong&gt;18-edo&lt;/strong&gt;&lt;/u&gt;: see above&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;u&gt;&lt;strong&gt;17-edo&lt;/strong&gt;&lt;/u&gt;: (generator = 3\17 = perfect 3rd)&lt;br /&gt;
&lt;u&gt;&lt;strong&gt;25-edo&lt;/strong&gt;&lt;/u&gt;: (generator = 7\25 = perfect 3rd)&lt;br /&gt;
D * E * * F * G * * A * B * * C * D&lt;br /&gt;
D * * * E * * F * * * G * * A * * * B * * C * * * D&lt;br /&gt;
P1 - A1/d2 - m2 - M2 - A2/d3 - P3 - A3/d4 - m4 - M4 - m5 - M5 - A5/d6 - P6 - A6/d7 - m7 - M7 - A7/d8 - P8&lt;br /&gt;
P1 - A1 - d2 - m2 - M2 - A2 - d3 - P3 - A3 - d4 - m4 - M4 - A4 - d5 - m5 - M5 - A5 - d6 - P6 - A6 - d7 - m7 - M7 - A7 - d8 - P8&lt;br /&gt;
&lt;br /&gt;
etc.&lt;br /&gt;
&lt;br /&gt;
&lt;u&gt;&lt;strong&gt;Chroma-3 edos&lt;/strong&gt;&lt;/u&gt;&lt;strong&gt;:&lt;/strong&gt;&lt;br /&gt;
genchain of seconds: A1 - A2 - M3 - M4 - M5 - M6 - P7 - P1 - P2 - m3 - m4 - m5 - m6 - d7 - d8 etc.&lt;br /&gt;
D# - E# - F# - G# - A - B - C - D - E - F - G - Ab - Bb - Cb - Db etc.&lt;br /&gt;
&lt;br /&gt;
&lt;strong&gt;&lt;u&gt;15-edo&lt;/u&gt;:&lt;/strong&gt; (generator = 2\15 = perfect 2nd)&lt;br /&gt;
D * E * F * G * * A * B * C * D&lt;br /&gt;
P1 - A1/d2 - P2 - A2/d3 - m3 - M3 - m4 - M4 - m5 - M5 - m6 - M6 - A6/d7 - P7 - A7/d8 - P8&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;strong&gt;&lt;u&gt;22-edo&lt;/u&gt;:&lt;/strong&gt; (generator = 3\22 = perfect 2nd)&lt;br /&gt;
D * * E * * F * * G * * * A * * B * * C * * D&lt;br /&gt;
P1 - A1 - d2 - P2 - A2 - d3 - m3 - M3 - A3/d4 - m4 - M4 - A4/d5 - m5 - M5 - A5/d6 - m6 - M6 - A6 - d7 - P7 - A7 - d8 - P8&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
etc.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
For 22-edo, it's a 3\22 2nd&lt;br /&gt;
&lt;u&gt;&lt;strong&gt;Chroma-4 edos&lt;/strong&gt;&lt;/u&gt;&lt;strong&gt;:&lt;/strong&gt;&lt;br /&gt;
genchain: ...D# E# F# G# A B C D E F G Ab Bb Cb Db...&lt;br /&gt;
genchain of seconds: d8 - d2 - m3 - m4 - m5 - m6 - P7 - P1 - P2 - M3 - M4 - M5 - M6 - A7 - A1 etc.&lt;br /&gt;
scale: D * * E * * F * * G * * * A * * B * * C * * D&lt;br /&gt;
Db - Eb - Fb - Gb - A - B - C - D - E - F - G - A# - B# - C# - D# etc.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;strong&gt;&lt;u&gt;20-edo&lt;/u&gt;:&lt;/strong&gt; (generator = 3\20 = perfect 2nd)&lt;br /&gt;
D * * E * * F * * G * A * * B * * C * * D&lt;br /&gt;
P1 - A1 - d2 - P2 - A2/d3 - m3 - M3 - A3/d4 - m4 - M4 - A4/d5 - m5 - M5 - A5/d6 - m6 - M6 - A6/d7 - P7 - A7 - d8 - P8&lt;br /&gt;
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For 17-edo, the natural generator is the 5\17 3rd.&lt;br /&gt;
&lt;strong&gt;&lt;u&gt;27-edo&lt;/u&gt;:&lt;/strong&gt; (generator = 4\27 = perfect 2nd)&lt;br /&gt;
D * * * E * * * F * * * G * * A * * * B * * * C * * * D&lt;br /&gt;
P1 - A1 - AA1/dd2 - d2 - P2 - A2 - d3 - m3 - M3 - A3 - d4 - m4 - M4 - A4 - d5 - m5 - M5 - A5 etc.&lt;br /&gt;
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For 15-edo, it's the 2\15 2nd.&lt;br /&gt;
etc.&lt;br /&gt;
For 12-edo, it's the 7\12 5th, which generates standard notation.&lt;br /&gt;
For 16-edo, it's the 9\16 5th.&lt;br /&gt;
For 21-edo, it's the 3\21 2nd, the 6\21 3rd, the 9\21 4th, the 12\21 5th, etc. All these intervals generate the same scale, and the same notation.&lt;br /&gt;
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You can easily find the natural generator using the scale tree. It's also related to the chroma. But it doesn't intrinsically depend on any ratios or commas, or on the prime limit.&lt;br /&gt;
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