4L 4s: Difference between revisions

Wikispaces>FREEZE
No edit summary
Scale tree: replace with template (- golden diminished)
 
(22 intermediate revisions by 11 users not shown)
Line 1: Line 1:
The minimum harmonic entropy scale with this [[MOSScales|MOS]] pattern is [[Jubilismic_clan|diminished]][8], basically the familiar [[Octatonic_scale|octatonic scale]] of 12edo.
{{Infobox MOS
| Name = tetrawood; diminished
| Periods = 4
| nLargeSteps = 4
| nSmallSteps = 4
| Equalized = 1
| Collapsed = 0
| Pattern = LsLsLsLs
}}
{{MOS intro}}


There are 4 different near-MOSes such that multiples of the period are the only generic intervals with more than two specific representatives: LLsLsLss, LLsLssLs, LLssLLss, LLssLsLs. However, none are strictly proper in 12edo. (They are only proper if the generator is larger than 100 cents, which unfortunately is the wrong direction for good diminished tunings.)
The minimum harmonic entropy scale with this mos pattern is [[Diminished]][8], the familiar [[octatonic scale]] of 12edo.


{| class="wikitable"
In addition to the true mos form, LsLsLsLs, there are four near-mos forms – LLsLsLss, LLsLssLs, LLssLLss, and LLssLsLs – in which the period and its multiples are the only intervals with more than two varieties. The near-mos forms are only proper if the dark generator is larger than 1\12 (100{{c}}).
|-
! colspan="5" | Generator
! | Cents
! | Comments
|-
| | 0\4
| |
| |
| |
| |
| | 0
| style="text-align:center;" |
|-
| |
| |
| |
| |
| | 1\24
| | 50
| |
|-
| |
| |
| |
| | 1\20
| |
| | 60
| style="text-align:center;" | L/s = 4
|-
| |
| |
| |
| |
| |
| | 300/(1+pi)
| |
|-
| |
| |
| | 1\16
| |
| |
| | 75
| style="text-align:center;" | L/s = 3
|-
| |
| |
| |
| |
| |
| | 300/(1+e)
| |
|-
| |
| |
| |
| |
| | 3\44
| | 81.82
| |
|-
| |
| |
| |
| | 2\28
| |
| | 85.71
| |
|-
| |
| | 1\12
| |
| |
| |
| | 100
| style="text-align:center;" | Diminished is around here


Optimum rank range (L/s=2/1) for MOS
== Intervals ==
|-
{{MOS intervals}}
| |
 
| |
== Modes ==
| |
{{MOS mode degrees}}
| |
 
| |
== Scale tree ==
| | 300/(1+sqrt(3))
{{MOS tuning spectrum
| |
| 6/5 = [[Fourfives]]↑
|-
| 13/8 = Unnamed golden tuning
| |
| 2/1 = [[Diminished]]
| |
| 13/5 = Unnamed golden tuning
| |
| 6/1 = [[Quadritikleismic]]↓
| | 3\32
}}
| |
 
| | 112.5
[[Category:Tetrawood| ]] <!-- main article -->
| style="text-align:center;" |
[[Category:8-tone scales]]
|-
| |
| |
| |
| |
| | 5\52
| | 115.38
| style="text-align:center;" | Golden diminished
|-
| |
| |
| |
| |
| |
| | 300/(1+pi/2)
| |
|-
| |
| |
| | 2\20
| |
| |
| | 120
| style="text-align:center;" |
|-
| | 1\8
| |
| |
| |
| |
| | 150
| style="text-align:center;" |
|}