21L 1s: Difference between revisions

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| Collapsed = 1
| Collapsed = 1
| Pattern = LLL...21x...LLLs
| Pattern = LLL...21x...LLLs
| Other names = tricesimoprimal quartertonic
| Other names = escapist,<br> tricesimoprimal quartertonic
}}
}}
21L 1s is the scale that is most commonly produced by stacking the interval of [[32/31]] or [[31/30]].  
{{MOS intro}}
[[Eliora]] proposes the name '''escapist''' for this pattern, referencing the [[escapade]] temperament which is supported by both [[21edo]] and [[22edo]], thus covering the entire tuning spectrum; [[User:Lériendil|Lériendil]] proposes '''noletic''' for similar reasons, as 9 generators reach a diatonic [[4/3]], supporting the scale [[9ed4/3]] known also as "noleta".


A name '''tricesimoprimal quartertonic''' is proposed for this pattern since its harmonic entropy minimum corresponds to tempering out the unnamed comma 961/960 - the tricesimoprimal quartertones being equated with each other. In addition, both [[21edo]] and [[22edo]], extreme ranges of the MOS do not temper out this comma, while EDOs up to 100-200 which have this scale do.  
[[User:Moremajorthanmajor|Moremajorthanmajor]] proposes the name ''tricesimoprimal quartertonic'' for this pattern since its harmonic entropy minimum corresponds to tempering out the unnamed comma 961/960—the tricesimoprimal quartertones being equated with each other. In addition, both [[21edo]] and [[22edo]], extreme ranges of the MOS do not temper out this comma, while EDOs up to 100-200 which have this scale do.  


==Tuning ranges==
== Tuning ranges ==
The scale's approach to standard harmony can be considered based on the mode.


=== Diatonic fifth and 65edo (Ultrasoft and supersoft) ===
=== Brighter modes ===
==== Diatonic fifth and 65edo (Ultrasoft and supersoft) ====
Between 3\65 and 1\22, 13 steps amount to a diatonic fifth, which corresponds to the ultrasoft step ratio range. In [[65edo]], the fifth produced by 13 steps of the tricesimoprimal quartertonic scale is the same as 3 steps of [[5edo]], and thus is the exact boundary between a fifth proper and a fifth-sixth.   
Between 3\65 and 1\22, 13 steps amount to a diatonic fifth, which corresponds to the ultrasoft step ratio range. In [[65edo]], the fifth produced by 13 steps of the tricesimoprimal quartertonic scale is the same as 3 steps of [[5edo]], and thus is the exact boundary between a fifth proper and a fifth-sixth.   


If the pure 32/31 is used as a generator, the resulting fifth is 714.53756 cents, which puts it in the category around Ultrapyth.   
If the pure 32/31 is used as a generator, the resulting fifth is 714.53756 cents, which puts it in the category around Ultrapyth.   


=== Fifth-sixth (hard of supersoft) ===
==== Fifth-sixth (hard of supersoft) ====
From 1\21 to 3\65, 13 steps amount to a fifth-sixth.   
From 1\21 to 3\65, 13 steps amount to a fifth-sixth.   


If the pure 31/30 is used as a generator, the resulting fifth-sixth is 737.96915 cents, which puts it in the category around father/petritri/aurora.   
If the pure 31/30 is used as a generator, the resulting fifth-sixth is 737.96915 cents, which puts it in the category around father/petritri/aurora.   
=== Darker modes ===
If instead the small step is stacked down, this enables the scale to approximate the standard 4:5:6 and 10:12:15 triads, as the [[escapade]] temperament does.
The escapade temperament reaches 4/3 in 9 gensteps, meaning that modes from Hermit (12|9) onward support a perfect fifth from the tonic. This also enables the modes from Hermit through Temperance (7|14) to support the major triad, 4:5:6, and from Devil (6|15) onward to support the minor triad, 10:12:15. The 700 cent fifth is supported in [[108edo]], stacking steps of 5\108 downward.


== Relation to other equal divisions ==
== Relation to other equal divisions ==
2 steps act as a pseudo-16/15, and when they actually act as 16/15, 961/960 is tempered out. If one were to instead tune in favour of 6/5 instead of 7/6, the resulting hardness would be around 1.233. 114edo and 137edo represent this the best.
2 steps act as a pseudo-16/15, and when they actually act as 16/15, 961/960 is tempered out.  
 
== Scale properties ==
{{TAMNAMS use}}
 
=== Intervals ===
{{MOS intervals}}
 
=== Generator chain ===
{{MOS genchain}}
 
=== Modes ===
{{MOS mode degrees}}
 
== Proposed mode names ===
The author proposes naming the modes after Tarot Major Arcana adjectivals based on how many generators down there is since there are 22 of them.


== Modes ==
Eliora proposes naming the brightest mode Alpharabian, after the fact that 33/32 is called Al-Farabi quarter-tone, and the rest after Tarot Major Arcana adjectivals based on how many generators down there is.
{| class="wikitable"
{| class="wikitable"
|+
!Mode
!Name
|-
|-
|<nowiki>22|0</nowiki>
! Mode
|Alpharabian
! Name
|-
| 21{{pipe}}0
| Foolish
|-
| 20{{pipe}}1
| Magical
|-
|-
|<nowiki>21|1</nowiki>
| 19{{pipe}}2
|Magical
| High Priestess's
|-
|-
|<nowiki>20|2</nowiki>
| 18{{pipe}}3
|High Priestess's  
| Empress's
|-
|-
|<nowiki>19|3</nowiki>
|
|Empress's
|
|-
|-
|...
| 3{{pipe}}19
|...
| Lunar
|-
|-
|<nowiki>2|20</nowiki>
| 2{{pipe}}19
|Judgemental
| Solar
|-
|-
|<nowiki>1|21</nowiki>
| 1{{pipe}}20
|Worldwide
| Judgemental
|-
|-
|<nowiki>0|22</nowiki>
| 0{{pipe}}21
|Foolish
| Worldwide
|}
|}
== Intervals ==
{{MOS intervals}}


== Scale tree ==
== Scale tree ==
{| class="wikitable center-all"
{{MOS tuning spectrum}}
! colspan="6" |Generator
 
!L
== See also ==
!s
* [[32/31]]
!L/s
* [[31/30]]
!Comments
* [[Escapade]]
|-
|1\23
|
|
|
|
|
|1
|1
|1.000
|
|-
| || || || || ||6\137||6||5||1.200
|
|-
| || || || ||5\114|| ||5||4||1.250
|
|-
| || || || || ||9\205||9||7||1.286
|
|-
| || || ||4\91|| || ||4||3||1.333
|13 steps adding to lower bound of diatonic fifths (685.71c) is here
|-
| || || || || ||11\250||11||8||1.375
|
|-
| || || || ||7\159|| ||7||5||1.400
|
|-
| || || || || ||10\227||10||7||1.428
|
|-
| || ||3\68|| || || ||3||2||1.500
|[[23edo and octave stretching|Stretched 23edo]] is in this range
|-
| || || || || ||11\249||11||7||1.571
|
|-
| || || || ||8\181|| ||8||5||1.600
|
|-
| || || || || ||13\294||13||8||1.625
|
|-
| || || ||5\113|| || ||5||3||1.667
|
|-
| || || || || ||12\271||12||7||1.714
|
|-
| || || || ||7\158|| ||7||4||1.750
|
|-
| || || || || ||9\203||9||5||1.800
|
|-
| ||2\45|| || || || ||2||1||2.000
|Basic quartismoid
|-
| || || || || ||9\202||9||4||2.250
|
|-
| || || || ||7\157|| ||7||3||2.333
|
|-
| || || || || ||12\269||12||5||2.400
|
|-
| || || ||5\112|| || ||5||2||2.500
|13 steps adding to 1/4 comma meantone fifth is around here
|-
| || || || || ||13\291||13||5||2.600
|
|-
| || || || ||8\179|| ||8||3||2.667
|
|-
| || || || || ||11\246||11||4||2.750
|
|-
| || ||3\67|| || || ||3||1||3.000
|
|-
| || || || || ||10\223||10||3||3.333
|
|-
| || || || ||7\156|| ||7||2||3.500
|13 steps adding to a 700 cent fifth is here
|-
| || || || || ||11\245||11||3||3.667
|
|-
| || || ||4\89|| || ||4||1||4.000
|
|-
| || || || || ||9\200||9||2||4.500
|13 steps adding to 3/2 perfect fifth is around here
|-
| || || || ||5\111|| ||5||1||5.000
|
|-
| || || || || ||6\133||6||1||6.000
|
|-
|1\22|| || || || || ||1||0||→ inf
|
|}
==See also==
* [[33/32]]
* [[33/32 equal step tuning]]