Blackdye: Difference between revisions
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'''Blackdye''' (also denoted 3s in [[groundfault]]'s [[aberrismic theory]]) is a 10-note, [[bipentatonic scale|bipentatonic]], [[generator-offset]] scale with step | '''Blackdye''' (also denoted 3s in [[groundfault]]'s [[aberrismic theory]]) is a 10-note, [[bipentatonic scale|bipentatonic]], [[generator-offset]] scale with [[step signature]] 5L 2m 3s ([[step pattern]] sLmLsLmLsL), equivalent to the [[5L 5s]] mos with two of the small steps made larger and the other three made smaller. Unlike [[diasem]], another diatonic-based scale with comma steps, blackdye is not [[chirality|chiral]]. It can be tuned as a [[5-limit]] JI scale or a tempered version thereof, where L represents [[10/9]], m represents [[16/15]], and s represents [[81/80]]. Under this interpretation, the scale has two chains of [[3/2]] generators with an offset of [[10/9]]. Blackdye can, of course, be used in 5-limit [[equal temperament]]s that do not temper out [[81/80]], such as [[22edo]] and [[34edo]]; however, there are more exotic tunings of the scale, such as [[32edo]]'s 5:2:1 and [[37edo]]'s 6:2:1, which have [[neogothic]] thirds and [[naiadic]]s instead of 5-limit thirds and Pythagorean thirds, and [[29edo]]'s 4:3:1 and [[36edo]]'s 5:4:1, which have submajor and supraminor thirds instead of 5-limit thirds. One can even interpret diasem as a [[negative-s blackdye|9-note subset of blackdye with a negative s step]]. | ||
Blackdye is a 10-note extension of the [[nicetone]] scale 3L | Blackdye is a 10-note extension of the [[nicetone]] scale 3L 2M 2s, LMsLMLs. | ||
''Blackdye'', a name given by groundfault, is a pun on "Blackwood" and "diatonic" since its step sizes are intermediate between that of [[diatonic]] (5L 2s) and [[Blackwood]][10] ([[5L 5s]]). | ''Blackdye'', a name given by groundfault, is a pun on "Blackwood" and "diatonic" since its step sizes are intermediate between that of [[diatonic]] (5L 2s) and [[Blackwood]][10] ([[5L 5s]]). | ||
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! style="text-align:center;" |Name | ! style="text-align:center;" |Name | ||
|- | |- | ||
| | | | | sLmLsLmLsL | ||
| | Blackdye Acute Aeolian | | | Blackdye Acute Aeolian | ||
|- | |- | ||
| | | | | LmLsLmLsLs | ||
| | Blackdye Grave Aeolian | | | Blackdye Grave Aeolian | ||
|- | |- | ||
| | | | | mLsLmLsLsL | ||
| | Blackdye Locrian | | | Blackdye Locrian | ||
|- | |- | ||
| | | | | LsLmLsLsLm | ||
| | Blackdye Ionian | | | Blackdye Ionian | ||
|- | |- | ||
| | | | | sLmLsLsLmL | ||
| | Blackdye Acute Dorian | | | Blackdye Acute Dorian | ||
|- | |- | ||
| | | | | LmLsLsLmLs | ||
| | Blackdye Grave Dorian | | | Blackdye Grave Dorian | ||
|- | |- | ||
| | | | | mLsLsLmLsL | ||
| | Blackdye Phrygian | | | Blackdye Phrygian | ||
|- | |- | ||
| | | | | LsLsLmLsLm | ||
| | Blackdye Lydian | | | Blackdye Lydian | ||
|- | |- | ||
| | | | | sLsLmLsLmL | ||
| | Blackdye Acute Mixo | | | Blackdye Acute Mixo | ||
|- | |- | ||
| | | | | LsLmLsLmLs | ||
| | Blackdye Grave Mixo | | | Blackdye Grave Mixo | ||
|} | |} | ||
=== By generator chain === | === By generator chain === | ||
Because blackdye has two chains of 5 fifth generators, it has two chains of 5 modes each separated by one generator: | Because blackdye has two chains of 5 fifth generators, it has two chains of 5 modes each separated by one generator: | ||
* Lydian > Ionian > Grave Mixo > Grave Dorian > Grave Aeolian | |||
* Acute Mixo > Acute Dorian > Acute Aeolian > Phrygian > Locrian | |||
== Properties == | == Properties == | ||
# Assuming positive step sizes, the fifth (3L + | # Assuming positive step sizes, the fifth (3L + m + 2s) of blackdye must be a diatonic fifth.<!-- | ||
#* (To see this: Consider the chain of fifths generated by the fifth. The diatonic chroma = 7 fifths - 4 octaves = 21L + | #* (To see this: Consider the chain of fifths generated by the fifth. The diatonic chroma = 7 fifths - 4 octaves = 21L + 7m + 14s - (20L + 8m + 12s) = L - m + 2s. Since L - m >= 0, this must always be nonnegative, so the fifth must be >= 4\7. The fifth cannot be sharper than 3\5, since it generates the [[2L 3s|2L' 3s']] subset of blackdye with L' = mL and s' = sL.)--> | ||
# Assuming positive step sizes, the fifth is: | # Assuming positive step sizes, the fifth is: | ||
#* sharper than 700¢, if L + | #* sharper than 700¢, if L + 3s > 2m | ||
#* equal to 700¢, if L + | #* equal to 700¢, if L + 3s = 2m | ||
#* flatter than 700¢, if L + | #* flatter than 700¢, if L + 3s < 2m | ||
== Tunings == | == Tunings == | ||
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|+ Blackdye tunings | |+ Blackdye tunings | ||
! rowspan="2" |Tuning | ! rowspan="2" |Tuning | ||
! rowspan="2" |L: | ! rowspan="2" |L:m:s | ||
! colspan="9" |Degrees of the mode | ! colspan="9" |Degrees of the mode sLmLsLmLsL | ||
|- | |- | ||
!1!!2!!3!!4!!5!!6!!7!!8!!9 | !1!!2!!3!!4!!5!!6!!7!!8!!9 | ||
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== Example == | == Example == | ||
An example in Blackdye Acute Aeolian, | An example in Blackdye Acute Aeolian, sLmLsLmLsL ([[:File:Blackdye Aeolian Example Score.pdf|score]]) | ||
[[File:Blackdye Aeolian Example 22edo.mp3]] [[22edo]] (L: | [[File:Blackdye Aeolian Example 22edo.mp3]] [[22edo]] (L:m:s = 3:2:1) | ||
[[File:Blackdye Aeolian Example 27edo.mp3]] [[27edo]] (L: | [[File:Blackdye Aeolian Example 27edo.mp3]] [[27edo]] (L:m:s = 4:2:1) | ||
[[File:Blackdye Aeolian Example 29edo.mp3]] [[29edo]] (L: | [[File:Blackdye Aeolian Example 29edo.mp3]] [[29edo]] (L:m:s = 4:3:1) | ||
[[File:Blackdye Aeolian Example 32edo 5_2_1.mp3]] [[32edo]] (L: | [[File:Blackdye Aeolian Example 32edo 5_2_1.mp3]] [[32edo]] (L:m:s = 5:2:1) | ||
[[File:Blackdye Aeolian Example 34edo.mp3]] [[34edo]] (L: | [[File:Blackdye Aeolian Example 34edo.mp3]] [[34edo]] (L:m:s = 5:3:1) | ||
[[File:Blackdye Aeolian Example 36edo.mp3]] [[36edo]] (L: | [[File:Blackdye Aeolian Example 36edo.mp3]] [[36edo]] (L:m:s = 5:4:1) | ||
== Scala files == | == Scala files == | ||
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* [[Diasem]], a similar diatonic-like mos detempering but for 2.3.7 | * [[Diasem]], a similar diatonic-like mos detempering but for 2.3.7 | ||
* [[Nicetone]], a subset of blackdye | * [[Nicetone]], a subset of blackdye | ||
== External links == | |||
* [https://sw3.lumipakkanen.com/scale/9kkiMRL__ 5-limit JI blackdye in Scale Workshop] | |||
* [https://sw3.lumipakkanen.com/scale/9kkCrGrsY 27edo blackdye in Scale Workshop] | |||
* [https://sw3.lumipakkanen.com/scale/9kkWpQX9k 32edo blackdye in Scale Workshop] | |||
* [https://sw3.lumipakkanen.com/scale/9kkLl2oWP 34edo blackdye in Scale Workshop] | |||
[[Category:GO scales]] | [[Category:GO scales]] |