7L 8s: Difference between revisions

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7L 8s refers to a Moment of Symmetry scale with 7 large steps and 8 small steps. One especially notable temperament that falls into this MOS pattern is [[Porcupine|porcupine]], of the [[Porcupine_family|porcupine family]].
{{Infobox MOS}}
{{MOS intro}}


{| class="wikitable"
It is notable for supporting [[Porcupine]], of the [[Porcupine_family|porcupine family]].
|-
! colspan="5" | Generator
! | octachord
! | g
! | 2g
! | 3g
! | 4g
! | 5g
! | 6g
! | 7g
! | Comments
|-
| style="text-align:center;" | 2\15
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" | 1 1 1 1 1 1 1
| style="text-align:center;" | 160
| style="text-align:center;" | 320
| style="text-align:center;" | 480
| style="text-align:center;" | 640
| style="text-align:center;" | 800
| style="text-align:center;" | 960
| style="text-align:center;" | 1120
| style="text-align:center;" |
|-
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" | 9\67
| style="text-align:center;" | 4 5 4 5 4 5 4
| style="text-align:center;" | 161.2
| style="text-align:center;" | 322.4
| style="text-align:center;" | 483.6
| style="text-align:center;" | 644.8
| style="text-align:center;" | 806
| style="text-align:center;" | 967.2
| style="text-align:center;" | 1128.4
| style="text-align:center;" |
|-
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" | 7\52
| style="text-align:center;" |
| style="text-align:center;" | 3 4 3 4 3 4 3
| style="text-align:center;" | 161.5
| style="text-align:center;" | 323.1
| style="text-align:center;" | 484.6
| style="text-align:center;" | 646.2
| style="text-align:center;" | 807.7
| style="text-align:center;" | 969.2
| style="text-align:center;" | 1130.8
| style="text-align:center;" |
|-
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" | 5\37
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" | 2 3 2 3 2 3 2
| style="text-align:center;" | 162.2
| style="text-align:center;" | 324.3
| style="text-align:center;" | 486.5
| style="text-align:center;" | 648.6
| style="text-align:center;" | 810.8
| style="text-align:center;" | 973
| style="text-align:center;" | 1135.1
| style="text-align:center;" | Optimal rank range (L/s=3/2) porcupine
|-
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" | <span style="display: block; text-align: center;">2 pi 2 pi 2 pi 2</span>
| style="text-align:center;" | 162.4
| style="text-align:center;" | 324.8
| style="text-align:center;" | 487.2
| style="text-align:center;" | 649.6
| style="text-align:center;" | 812
| style="text-align:center;" | 974.4
| style="text-align:center;" | 1136.8
| style="text-align:center;" |
|-
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" | 13\96
| style="text-align:center;" | 5 8 5 8 5 8 5
| style="text-align:center;" | 162.5
| style="text-align:center;" | 325
| style="text-align:center;" | 487.5
| style="text-align:center;" | 650
| style="text-align:center;" | 812.5
| style="text-align:center;" | 975
| style="text-align:center;" | 1137.5
| style="text-align:center;" |
|-
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" | 1 phi 1 phi 1 phi 1
| style="text-align:center;" | 162.6
| style="text-align:center;" | 325.1
| style="text-align:center;" | 487.7
| style="text-align:center;" | 650.2
| style="text-align:center;" | 812.8
| style="text-align:center;" | 975.35
| style="text-align:center;" | 1137.9
| style="text-align:center;" | <span style="display: block; text-align: center;">Golden porcupine when L/s=phi</span>
|-
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" | 8\59
| style="text-align:center;" |
| style="text-align:center;" | 3 5 3 5 3 5 3
| style="text-align:center;" | 162.7
| style="text-align:center;" | 325.4
| style="text-align:center;" | 488.1
| style="text-align:center;" | 650.8
| style="text-align:center;" | 813.6
| style="text-align:center;" | 976.3
| style="text-align:center;" | 1139
| style="text-align:center;" |
|-
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" | <span style="background-color: #ffffff;">1 √3 1 √3 1 √3 1</span>
| style="text-align:center;" | 162.9
| style="text-align:center;" | 325.9
| style="text-align:center;" | 488.7
| style="text-align:center;" | 651.6
| style="text-align:center;" | 814.55
| style="text-align:center;" | 977.5
| style="text-align:center;" | 1140.4
| style="text-align:center;" |
|-
| style="text-align:center;" |
| style="text-align:center;" | 3\22
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" | 1 2 1 2 1 2 1
| style="text-align:center;" | 163.6
| style="text-align:center;" | 327.3
| style="text-align:center;" | 490.9
| style="text-align:center;" | 654.5
| style="text-align:center;" | 818.2
| style="text-align:center;" | 981.8
| style="text-align:center;" | 1145.5
| style="text-align:center;" | Boundary of propriety (generators


smaller than this are proper)
== Scale properties ==
|-
{{TAMNAMS use}}
| style="text-align:center;" |
 
| style="text-align:center;" |
=== Intervals ===
| style="text-align:center;" |
{{MOS intervals}}
| style="text-align:center;" | 7\51
 
| style="text-align:center;" |
=== Generator chain ===
| style="text-align:center;" | 2 5 2 5 2 5 2
{{MOS genchain}}
| style="text-align:center;" | 164.7
 
| style="text-align:center;" | 329.4
=== Modes ===
| style="text-align:center;" | 494.1
{{MOS mode degrees}}
| style="text-align:center;" | 658.8
 
| style="text-align:center;" | 823.5
== Scale tree ==
| style="text-align:center;" | 988.2
{{todo|inline=1|complete table|text=There was previously octachord info in the old scale tree, in the form of the step pattern LsLsLsL. Please add it to the new scale tree.}}
| style="text-align:center;" | 1152.9
{{MOS tuning spectrum
| style="text-align:center;" |
| Depth = 6
|-
| 3/2 = Optimal rank range ({{nowrap|L/s {{=}} 3/2}}) porcupine
| style="text-align:center;" |
| 13/8 = Golden porcupine {{nowrap|L/s {{=}} φ}}
| style="text-align:center;" |
}}
| style="text-align:center;" |
 
| style="text-align:center;" |
{{stub}}
| style="text-align:center;" |
 
| style="text-align:center;" | <span style="display: block; text-align: center;">1 phi+1 1 phi+1 1 phi+1 1</span>
[[Category:Porcupine]]
| style="text-align:center;" | 164.9
[[Category:Abstract MOS patterns]]
| style="text-align:center;" | 329.8
| style="text-align:center;" | 494.75
| style="text-align:center;" | 659.7
| style="text-align:center;" | 824.6
| style="text-align:center;" | 989.5
| style="text-align:center;" | 1154.4
| style="text-align:center;" |
|-
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" | 11\80
| style="text-align:center;" | 3 8 3 8 3 8 3
| style="text-align:center;" | 165
| style="text-align:center;" | 330
| style="text-align:center;" | 495
| style="text-align:center;" | 660
| style="text-align:center;" | 825
| style="text-align:center;" | 990
| style="text-align:center;" | 1155
| style="text-align:center;" |
|-
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" | 1 e 1 e 1 e 1
| style="text-align:center;" | 165.1
| style="text-align:center;" | 330.2
| style="text-align:center;" | 495.3
| style="text-align:center;" | 660.3
| style="text-align:center;" | 825.4
| style="text-align:center;" | 990.5
| style="text-align:center;" | 1155.6
| style="text-align:center;" | <span style="display: block; text-align: center;">L/s=e</span>
|-
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" | 4\29
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" | 1 3 1 3 1 3 1
| style="text-align:center;" | 165.5
| style="text-align:center;" | 331
| style="text-align:center;" | 496.6
| style="text-align:center;" | 662.1
| style="text-align:center;" | 827.6
| style="text-align:center;" | 993.1
| style="text-align:center;" | 1158.6
| style="text-align:center;" |
|-
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" | 1 pi 1 pi 1 pi 1
| style="text-align:center;" | 165.7
| style="text-align:center;" | 331.4
| style="text-align:center;" | 497.1
| style="text-align:center;" | 662.85
| style="text-align:center;" | 828.5
| style="text-align:center;" | 994.3
| style="text-align:center;" | 1160
| style="text-align:center;" | <span style="display: block; text-align: center;">L/s=pi</span>
|-
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" | 5\36
| style="text-align:center;" |
| style="text-align:center;" | 1 4 1 4 1 4 1
| style="text-align:center;" | 166.7
| style="text-align:center;" | 333.3
| style="text-align:center;" | 500
| style="text-align:center;" | 666.7
| style="text-align:center;" | 833.3
| style="text-align:center;" | 1000
| style="text-align:center;" | 1166.7
| style="text-align:center;" |
|-
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" | 6\43
| style="text-align:center;" | 1 5 1 5 1 5 1
| style="text-align:center;" | 167.4
| style="text-align:center;" | 334.9
| style="text-align:center;" | 502.3
| style="text-align:center;" | 669.8
| style="text-align:center;" | 837.2
| style="text-align:center;" | 1004.65
| style="text-align:center;" | 1172.1
| style="text-align:center;" |
|-
| style="text-align:center;" | 1\7
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" |
| style="text-align:center;" | 0 1 0 1 0 1 0
| style="text-align:center;" | 171.4
| style="text-align:center;" | 342.9
| style="text-align:center;" | 514.3
| style="text-align:center;" | 685.7
| style="text-align:center;" | 857.1
| style="text-align:center;" | 1028.6
| style="text-align:center;" | 1200
| style="text-align:center;" |
|}