User:Inthar/4L 3s: Difference between revisions

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Line 121: Line 121:
! [[18edo]] value
! [[18edo]] value
! class="unsortable"| Note name on J
! class="unsortable"| Note name on J
! class="unsortable"| Approximate ratios
! #Gens up
! #Gens up
|-bgcolor="#eaeaff"
|-bgcolor="#eaeaff"
Line 127: Line 126:
| 0\18, 0.0
| 0\18, 0.0
| J
| J
| 1/1
| 0
| 0
|-bgcolor="#eaeaff"
|-bgcolor="#eaeaff"
Line 133: Line 131:
| 1\18, 66.7
| 1\18, 66.7
| J&
| J&
|
| -7
| -7
|-
|-
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| 1\18, 66.7
| 1\18, 66.7
| K@@
| K@@
|
| +11
| +11
|-
|-
Line 145: Line 141:
| 2\18, 133.3
| 2\18, 133.3
| K@
| K@
| 13/12
| +4
| +4
|-
|-
Line 151: Line 146:
| 3\18, 200.0
| 3\18, 200.0
| K
| K
| 9/8, 10/9
| -3
| -3
|-
|-
Line 157: Line 151:
| 4\18, 266.7
| 4\18, 266.7
| K&
| K&
|
| -10
| -10
|-bgcolor="#eaeaff"
|-bgcolor="#eaeaff"
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| 4\18, 266.7
| 4\18, 266.7
| L@
| L@
|
| +8
| +8
|-bgcolor="#eaeaff"
|-bgcolor="#eaeaff"
Line 169: Line 161:
| 5\18, 333.3
| 5\18, 333.3
| L
| L
| 17/14, 40/33
| +1
| +1
|-bgcolor="#eaeaff"
|-bgcolor="#eaeaff"
Line 175: Line 166:
| 6\18, 400.0
| 6\18, 400.0
| L&
| L&
| 5/4
| -6
| -6
|-bgcolor="#eaeaff"
|-bgcolor="#eaeaff"
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| 7\18, 466.7  
| 7\18, 466.7  
| L&&
| L&&
|
| -13
| -13
|-
|-
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| 6\18, 400.0
| 6\18, 400.0
| M@@
| M@@
|
| +12
| +12
|-
|-
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| 7\18, 466.7
| 7\18, 466.7
| M@
| M@
| 21/16
| +5
| +5
|-
|-
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| 8\18, 533.3  
| 8\18, 533.3  
| M
| M
| 19/14, 34/25
| -2
| -2
|-
|-
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| 9\18, 600.0
| 9\18, 600.0
| M&
| M&
| 7/5
| -9
| -9
|-bgcolor="#eaeaff"
|-bgcolor="#eaeaff"
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| 9\18, 600.0
| 9\18, 600.0
| N@
| N@
| 10/7
| +9
| +9
|-bgcolor="#eaeaff"
|-bgcolor="#eaeaff"
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| 10\18, 666.7
| 10\18, 666.7
| N
| N
| 28/19, 25/17
| +2
| +2
|-bgcolor="#eaeaff"
|-bgcolor="#eaeaff"
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| 11\18, 733.3
| 11\18, 733.3
| N&
| N&
| 32/21
| -5
| -5
|-bgcolor="#eaeaff"
|-bgcolor="#eaeaff"
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| 12\18, 800.0
| 12\18, 800.0
| N&&
| N&&
|
| -12
| -12
|-
|-
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| 11\18, 733.3
| 11\18, 733.3
| O@@
| O@@
|
| +13
| +13
|-
|-
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| 12\18, 800.0
| 12\18, 800.0
| O@
| O@
| 8/5
| +6
| +6
|-
|-
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| 13\18, 866.7
| 13\18, 866.7
| O
| O
| 28/17, 33/20
| -1
| -1
|-
|-
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| 14\18, 933.3
| 14\18, 933.3
| O&
| O&
|
| -8
| -8
|-bgcolor="#eaeaff"
|-bgcolor="#eaeaff"
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| 14\18, 933.3
| 14\18, 933.3
| P@
| P@
|
| +10
| +10
|-bgcolor="#eaeaff"
|-bgcolor="#eaeaff"
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| 15\18, 1000.0
| 15\18, 1000.0
| P
| P
| 16/9, 9/5
| +3
| +3
|-bgcolor="#eaeaff"
|-bgcolor="#eaeaff"
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| 16\18, 1066.7
| 16\18, 1066.7
| P&
| P&
| 24/13
| -4
| -4
|-bgcolor="#eaeaff"
|-bgcolor="#eaeaff"
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| 17\18, 1133.3
| 17\18, 1133.3
| P&
| P&
|
| -11
| -11
|-
|-
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| 17\18, 1133.3
| 17\18, 1133.3
| J@
| J@
|
| +7
| +7
|}
|}

Revision as of 00:59, 30 April 2021

11edo smitonic

The intervals of the symmetric LsLsLsL mode (harmonics in bold): Sortable table of major and minor intervals in hypohard smitonic tunings:

Degree 11edo value Note name on J #Gens up
unison 0\11, 0.0 J 0
minor mos2nd 1\11, 109.1 K@ +4
major mos2nd 2\11, 218.2 K -3
perf. mos3rd 3\11, 327.3 L +1
aug. mos3rd 4\11, 436.4 L& -6
minor mos4th 4\11, 436.4 M@ +5
major mos4th 5\11, 545.5 M -2
minor mos5th 6\11, 656.6 N +2
major mos5th 7\11, 763.6 N& -5
dim. mos6th 7\11, 763.6 O@ +6
perf. mos6th 8\11, 872.7 O -1
minor mos7th 9\11, 981.8 P +3
major mos7th 10\11, 1090.9 P& -4

Assuming the symmetric 2121212 mode, the 1-4-7 chord is:

  • 8:11:14 on degrees 1 and 6
  • 8:11:15 on degrees 3, 5, and 7
  • something complex on degrees 2 and 4

Modal harmony

The seven modes are, from brightest to darkest:

Nerevarine mode LLSLSLS
Vivecan mode LSLLSLS
Lorkhanic mode LSLSLLS
Sothic mode LSLSLSL
Kagrenacan mode SLLSLSL
Almalexian mode SLSLLSL
Dagothic mode SLSLSLL

Modally, the highest to lowest entropy scale degrees (unison = 1) are:

  • 2 and 7 (equally): .99 bits
  • 4 and 5 (equally): .86 bits
  • 3 and 6 (equally): .59 bits

If a scale degree is high entropy it tends to be the most informative on average; the modes that have this interval as major and minor respectively are roughly a 50-50 split. This tells us that unlike in the diatonic scale, thirds and sixths are the least informative in distinguishing smitonic modes. On the other hand, seconds, fourths and sevenths are highly informative.

In orgone, these scale degrees appear in the most consonant triads and tetrads of 11edo orgone, namely 8:9:11:15, 8:9:11:14 and 16:17:22:28. Those chords are therefore crucial for Orgone[7] modal harmony.

18edo smitonic

Degree 18edo value Note name on J #Gens up
unison 0\18, 0.0 J 0
chroma 1\18, 66.7 J& -7
dim. mos2nd 1\18, 66.7 K@@ +11
minor mos2nd 2\18, 133.3 K@ +4
major mos2nd 3\18, 200.0 K -3
aug. mos2nd 4\18, 266.7 K& -10
dim. mos3rd 4\18, 266.7 L@ +8
perf. mos3rd 5\18, 333.3 L +1
aug. mos3rd 6\18, 400.0 L& -6
doubly aug. mos3rd 7\18, 466.7 L&& -13
dim. mos4th 6\18, 400.0 M@@ +12
minor mos4th 7\18, 466.7 M@ +5
major mos4th 8\18, 533.3 M -2
aug. mos4th 9\18, 600.0 M& -9
dim. mos5th 9\18, 600.0 N@ +9
minor mos5th 10\18, 666.7 N +2
major mos5th 11\18, 733.3 N& -5
aug. mos5th 12\18, 800.0 N&& -12
doubly dim. mos6th 11\18, 733.3 O@@ +13
dim. mos6th 12\18, 800.0 O@ +6
perf. mos6th 13\18, 866.7 O -1
aug. mos6th 14\18, 933.3 O& -8
dim. mos7th 14\18, 933.3 P@ +10
minor mos7th 15\18, 1000.0 P +3
major mos7th 16\18, 1066.7 P& -4
aug. mos7th 17\18, 1133.3 P& -11
dim. mosoctave 17\18, 1133.3 J@ +7

Modal harmony

MODMOSes and chroma modification become more important. Use MODMOSes with SS = diminished mos3rd = 266.67¢. For example, rotations of LLLSLSS.

or 5L 1M 1S: LLMLLLS or LLSLLLM

Treat it as neutralized mavila antidiatonic?