18edo: Difference between revisions

Inthar (talk | contribs)
Xenwolf (talk | contribs)
precision unified, table syntax simplified, all monzos in comma table via template now
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The second way 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 "on the fly".
The second way 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 "on the fly".


{| class="wikitable" style="text-align:center"  
{| class="wikitable center-all right-2"
! Degree
! Degree
! Cents
! Cents
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== Representations of Just Intervals ==
== Representations of Just Intervals ==


{| class="wikitable"
{| class="wikitable center-all right-2"
! Degree
! Degree
! Cents
! Cents
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|-
|-
| 0
| 0
| 0.00
| 0.000
| 1/1
| 1/1
| 0
| 0
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|-
|-
| 1
| 1
| 66.67
| 66.667
| 27/26
| 27/26
| +1.329
| +1.329
Line 271: Line 271:
|-
|-
| 2
| 2
| 133.33
| 133.333
| 27/25
| 27/25
| +0.096
| +0.096
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|-
|-
| 3
| 3
| 200
| 200.000
| 9/8
| 9/8
| -3.910
| -3.910
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|-
|-
| 4
| 4
| 266.67
| 266.667
| 7/6
| 7/6
| -0.204
| -0.204
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|-
|-
| 5
| 5
| 333.33
| 333.333
| 17/14 or 40/33
| 17/14 or 40/33
| -2.796 +0.293
| -2.796 +0.293
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|-
|-
| 6
| 6
| 400
| 400.000
| 5/4 or 44/35
| 5/4 or 44/35
| +13.686 +3.822
| +13.686 +3.822
Line 301: Line 301:
|-
|-
| 7
| 7
| 466.67
| 466.667
| 21/16
| 21/16
| -4.114
| -4.114
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|-
|-
| 8
| 8
| 533.33
| 533.333
| 15/11
| 15/11
| -3.617
| -3.617
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|-
|-
| 9
| 9
| 600
| 600.000
| 17/12 or 24/17
| 17/12 or 24/17
| -3.000 +3.000
| -3.000 +3.000
Line 319: Line 319:
|-
|-
| 10
| 10
| 666.67
| 666.667
| 22/15
| 22/15
| +3.617
| +3.617
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|-
|-
| 11
| 11
| 733.33
| 733.333
| 32/21
| 32/21
| +4.114
| +4.114
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|-
|-
| 12
| 12
| 800
| 800.000
| 8/5 or 35/22
| 8/5 or 35/22
| -13.686 -3.822
| -13.686 -3.822
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|-
|-
| 13
| 13
| 866.67
| 866.667
| 28/17 or 33/20
| 28/17 or 33/20
| +2.796 -0.293
| +2.796 -0.293
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|-
|-
| 14
| 14
| 933.33
| 933.333
| 12/7
| 12/7
| +0.204
| +0.204
Line 349: Line 349:
|-
|-
| 15
| 15
| 1000
| 1000.000
| 16/9
| 16/9
| +3.910
| +3.910
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|-
|-
| 16
| 16
| 1066.67
| 1066.667
| 50/27
| 50/27
| -0.096
| -0.096
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|-
|-
| 17
| 17
| 1133.33
| 1133.333
| 52/27
| 52/27
| -1.329
| -1.329
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|-
|-
| 18
| 18
| 1200
| 1200.000
| 2/1
| 2/1
| 0
| 0
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18 EDO [[tempering out|tempers out]] the following [[Comma|commas]]. (Note: This assumes the [[val]] &lt; 18 29 42 51 62 67 |.)
18 EDO [[tempering out|tempers out]] the following [[Comma|commas]]. (Note: This assumes the [[val]] &lt; 18 29 42 51 62 67 |.)


{| class="wikitable" style="text-align:center;"
{| class="wikitable center-all left-2 right-3"
! [[Ratio]]
! [[Ratio]]
! [[Monzo]]
! [[Monzo]]
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|-
|-
| 128/125
| 128/125
| style="text-align:left;" | <nowiki> | 7 0 -3 </nowiki>&gt;
| {{Monzo| 7 0 -3 }}
| style="text-align:right;" | 41.06
| 41.06
| Trigu
| Trigu
| Diesis
| Diesis
| Augmented Comma
| Augmented Comma
|-
|-
| style="text-align:center;" | ???
| ???
| style="text-align:left;" | <nowiki> | 23 6 -14 </nowiki>&gt;
| {{Monzo| 23 6 -14 }}
| style="text-align:right;" | 3.34
| 3.34
| Sasa-sepbigu
| Sasa-sepbigu
| Vishnuzma
| Vishnuzma
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|-
|-
| 50/49
| 50/49
| style="text-align:left;" | <nowiki> | 1 0 2 -2 </nowiki>&gt;
| {{Monzo| 1 0 2 -2 }}
| style="text-align:right;" | 34.98
| 34.98
| Biruyo
| Biruyo
| Tritonic Diesis
| Tritonic Diesis
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|-
|-
| 686/675
| 686/675
| style="text-align:left;" | <nowiki> | 1 -3 -2 3 </nowiki>&gt;
| {{Monzo| 1 -3 -2 3 }}
| style="text-align:right;" | 27.99
| 27.99
| Trizo-agugu
| Trizo-agugu
| Senga
| Senga
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|-
|-
| 875/864
| 875/864
| style="text-align:left;" | {{Monzo| -5 -3 3 1 }}
| {{Monzo| -5 -3 3 1 }}
| style="text-align:right;" | 21.90
| 21.90
| Zotriyo
| Zotriyo
| Keema
| Keema
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|-
|-
| 1728/1715
| 1728/1715
| style="text-align:left;" | {{Monzo| 6 3 -1 -3 }}
| {{Monzo| 6 3 -1 -3 }}
| style="text-align:right;" | 13.07
| 13.07
| Triru-agu
| Triru-agu
| Orwellisma
| Orwellisma
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|-
|-
| 16875/16807
| 16875/16807
| style="text-align:left;" | {{Monzo| 0 3 4 -5 }}
| {{Monzo| 0 3 4 -5 }}
| style="text-align:right;" | 6.99
| 6.99
| Quinru-aquadyo
| Quinru-aquadyo
| Mirkwai
| Mirkwai
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|-
|-
| 3136/3125
| 3136/3125
| style="text-align:left;" | {{Monzo| 6 0 -5 2 }}
| {{Monzo| 6 0 -5 2 }}
| style="text-align:right;" | 6.08
| 6.08
| Zozoquingu
| Zozoquingu
| Hemimean
| Hemimean
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|-
|-
| 99/98
| 99/98
| style="text-align:left;" | {{Monzo| -1 2 0 -2 1 }}
| {{Monzo| -1 2 0 -2 1 }}
| style="text-align:right;" | 17.58
| 17.58
| Loruru
| Loruru
| Mothwellsma
| Mothwellsma
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|-
|-
| 100/99
| 100/99
| style="text-align:left;" | {{Monzo| 2 -2 2 0 -1 }}
| {{Monzo| 2 -2 2 0 -1 }}
| style="text-align:right;" | 17.40
| 17.40
| Luyoyo
| Luyoyo
| Ptolemisma
| Ptolemisma
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|-
|-
| 65536/65219
| 65536/65219
| style="text-align:left;" | {{Monzo| 16 0 0 -2 -3 }}
| {{Monzo| 16 0 0 -2 -3 }}
| style="text-align:right;" | 8.39
| 8.39
| Satrilu-aruru
| Satrilu-aruru
| Orgonisma
| Orgonisma
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|-
|-
| 385/384
| 385/384
| style="text-align:left;" | {{Monzo| -7 -1 1 1 1 }}
| {{Monzo| -7 -1 1 1 1 }}
| style="text-align:right;" | 4.50
| 4.50
| Lozoyo
| Lozoyo
| Keenanisma
| Keenanisma
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|-
|-
| 9801/9800
| 9801/9800
| style="text-align:left;" | {{Monzo| -3 4 -2 -2 2 }}
| {{Monzo| -3 4 -2 -2 2 }}
| style="text-align:right;" | 0.18
| 0.18
| Bilorugu
| Bilorugu
| Kalisma
| Kalisma
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|-
|-
| 91/90
| 91/90
| style="text-align:left;" | {{Monzo| -1 -2 -1 1 0 1 }}
| {{Monzo| -1 -2 -1 1 0 1 }}
| style="text-align:right;" | 19.13
| 19.13
| Thozogu
| Thozogu
| Superleap
| Superleap
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[[Category:18-tone]]
[[Category:18-tone]]
[[Category:18edo]]
[[Category:18edo]]
[[Category:edo]]
[[Category:Edo]]
[[Category:listen]]
[[Category:Listen]]
[[Category:scale]]
[[Category:Scale]]
[[Category:subgroup]]
[[Category:Subgroup]]
[[Category:teentuning]]
[[Category:Teentuning]]
[[Category:theory]]
[[Category:Theory]]
[[Category:todo:unify_precision]]