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| {{Infobox MOS | | {{Infobox MOS}} |
| | Name = echinoid | | {{MOS intro}} |
| | Periods = 2 | | There is only one significant (though small) harmonic entropy minimum with this MOS pattern: [[Porcupine_family#Hedgehog|hedgehog]], in which two generators are 6/5 and three are 4/3, same as [[porcupine]]. |
| | nLargeSteps = 6
| | |
| | nSmallSteps = 2
| | 6L 2s can be seen as a [[Warped diatonic|warped diatonic scale]], where one additional large step is added to diatonic (5L 2s). |
| | Equalized = 1
| | |
| | Paucitonic = 1
| | In addition to the true MOS pattern, there is a near-mos pattern, LLLLsLLs, in which the period is the only interval with more than two varieties. This near-MOS pattern is only proper if the generator is smaller than 2\14. Hedgehog is among these tunings. |
| | Pattern = LLLsLLLs
| | |
| }} | | == Scale properties == |
| | {{TAMNAMS use}} |
| | |
| | === Intervals === |
| | {{MOS intervals}} |
| | |
| | === Generator chain === |
| | {{MOS genchain}} |
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| '''6L 2s''' is a MOS scale with a half-octave period and a generator larger than 1\8 and smaller than 1\6. There is only one significant (though small) harmonic entropy minimum with this MOS pattern: [[Porcupine_family#Hedgehog|hedgehog]], in which two generators are 6/5 and three are 4/3, same as porcupine.
| | === Modes === |
| | {{MOS mode degrees}} |
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| In addition to the true MOS, LLLsLLLs, there is also a near-MOS, LLLLsLLs, in which the period is the only interval with more than two flavors. The true MOS is always proper, because there is only one small step per period, but the near-MOS is only proper if the generator is smaller than 2\14 (which includes hedgehog).
| | === Proposed Names === |
| | {{Idiosyncratic terms|Mode names proposed by [[User:Frostburn|Frostburn]] for their dreamy, yet oppressing sound especially in [[20edo]].}} |
| | {{MOS modes |
| | | Mode Names= |
| | Paralysis $ |
| | Nightmare $ |
| | Succubus $ |
| | Incubus $ |
| | }} |
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| == Scale tree == | | == Scale tree == |
| {| class="wikitable" | | {{MOS tuning spectrum |
| |- | | | 6/5 = Bison |
| ! colspan="6" | Generator
| | | 3/2 = [[Hedgehog]] is around here |
| ! | Cents
| | | 11/7 = Echidna |
| ! | Comments
| | | 13/8 = Supers, pogo |
| |-
| | | 13/5 = Golden ekic |
| | | 1\8
| | | 11/3 = Unidec |
| | |
| | | 9/2 = Secant |
| | |
| | }} |
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| | | 150
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| | style="text-align:center;" |
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| |-
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| |6\46
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| |156.52
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| |-
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| |5\38
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| |157.895
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| |-
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| |4\30
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| |160
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| |-
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| | | 3\22
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| | | 163.64
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| | style="text-align:center;" | Hedgehog is around here
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| |- | |
| | | | |
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| | | 164.99
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| |-
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| | | 8\58
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| | | 165.52
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| | style="text-align:center;" |
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| |-
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| | | 13\94
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| | | 165.96
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| | style="text-align:center;" | Golden hedgehog/echidna
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| |- | |
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| | | 5\36
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| | | 166.67
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| | style="text-align:center;" |
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| |- | |
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| | | 167.72
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| |-
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| | | 2\14
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| | | 171.43
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| | style="text-align:center;" | Boundary of propriety for near-MOS
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| Optimum rank range (L/s=2/1) for MOS
| | == Music == |
| |-
| | ; [[User:Frostburn|Frostburn]] |
| | |
| | * [https://youtu.be/nlF6al8MEuk ''Galloping Nightmares''] (2024) – synth metal |
| | |
| | [[Category:Ekic| ]] |
| | |
| | [[Category:8-tone scales]] |
| | | 5\34
| | <!-- main article --> |
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| | | 176.47
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| |-
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| | | 13\88
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| | | 177.27
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| |-
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| | | 8\54
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| | | 177.78
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| |-
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| | | 178.15
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| | style="text-align:center;" | <span style="display: block; text-align: center;">L/s = e</span>
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| |-
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| | | 3\20
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| | | 180
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| | style="text-align:center;" | L/s = 3
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| |-
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| | | 180.815
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| | | <span style="display: block; text-align: center;">L/s = pi</span>
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| |-
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| | | 4\26
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| | | 184.615
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| | style="text-align:center;" | L/s = 4
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| |-
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| |5\32
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| |187.5
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| |-
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| |6\38
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| |189.47
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| |-
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| | | 1\6
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| | | 200
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| | style="text-align:center;" |
| |
| |}
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| [[Category:Abstract MOS patterns]] | |