5L 9s: Difference between revisions

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| Neutralized = 2L 6s
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5L 9s is the chromatic scale of the semiquartal MOS.
{{MOS intro}}


This MOS, has a generator between 1/5edo (240 cents) and 3/14edo (257.143). The associated fifth ranges from 8\14 to 3\5, thus guaranteeing a diatonic fifth. 4/3 being approximated by +2 generators, the generator is called a semi-fourth. The most salient feature of the semi-fourth interval is that it is an ambiguous 8/7~7/6, or an approximate 15/13 if the scale is viewed as involving factors of 13. This MOS can be viewed as two parallel [[5L_2s|diatonic]] scales separated by a semi-fourth, and has analogous points of low harmonic entropy where two generators would approximate a [[meantone]] or [[superpyth]] 5th, plus an additional one between 15/13 & sqrt(4/3) where it is ideal for [[The_Archipelago#Barbados|barbados]] subgroup harmonies.
The associated fifth ranges from 8\[[14edo|14]] to 3\[[5edo|5]], thus guaranteeing a [[diatonic fifth]].  


{| class="wikitable"
4/3 being approximated by +2 generators, the generator is called a semi-fourth. The most salient feature of the semi-fourth interval is that it is an ambiguous {{nowrap|8/7 ~ 7/6}}, or an approximate [[15/13]] if the scale is viewed as involving factors of 13.  
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| | 1/5
This MOS can be viewed as two parallel [[5L_2s|diatonic]] scales separated by a semi-fourth, and has analogous points of low [[harmonic entropy]] where two generators would approximate a [[meantone]] or [[superpyth]] 5th, plus an additional one between 15/13 and <math>\sqrt{\frac{4}{3}}</math> where it is ideal for [[The_Archipelago#Barbados|barbados]] subgroup harmonies.
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== Scale properties ==
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{{TAMNAMS use}}
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| | 240
=== Intervals ===
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{{MOS intervals}}
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=== Generator chain ===
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{{MOS genchain}}
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| | 7/34
=== Modes ===
| | 247.059
{{MOS mode degrees}}
|-
 
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== Scale tree ==
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{{MOS tuning spectrum}}
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| | 6/29
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| | 248.276
|-
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| | 11/53
| | 249.057
|-
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| | 249.7135
|-
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| | 5/24
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| | 250
|-
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| | 250.6235
|-
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| | 14/67
| | 250.746
|-
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| | 250.865
|-
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| | 9/43
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| | 251.163
|-
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| | 13/62
| | 251.613
|-
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| | 4/19
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| | 252.632
|-
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| | 15/71
| | 253.521
|-
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| | 253.59
|-
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| | 11/52
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| | 253.846
|-
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| | 254.043
|-
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| | 18/85
| | 254.118
|-
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| | 254.24
|-
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| | 7/33
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| | 254.5455
|-
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| | 17/80
| | 255
|-
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| | 10/47
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| | 255.319
|-
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| | 13/61
| | 255.738
|-
| | 3/14
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| | 257.143
|}


[[Category:14-tone scales]]
[[Category:14-tone scales]]