149edo: Difference between revisions

ArrowHead294 (talk | contribs)
mNo edit summary
+ note about 894edo
 
(6 intermediate revisions by 3 users not shown)
Line 1: Line 1:
{{Infobox ET}}
{{Infobox ET}}
{{EDO intro|149}}
{{ED intro}}


== Theory ==
== Theory ==
149edo is the smallest division which is [[consistency|uniquely consistent]] through the [[17-odd-limit]]. It has a general flat tendency, with the fifth 1.28 cents flat, but the major third is a quarter of a cent sharp. In the 5-limit it tempers out the [[sensipent comma]], 78732/78125; in the 7-limit, [[1029/1024]], [[3136/3125]] and [[19683/19600]]; in the 11-limit [[385/384]] and [[441/440]]; in the 13-limit [[351/350]] and [[676/675]]; in the 17-limit [[273/272]] and [[561/560]]; in the 19-limit [[286/285]] and [[343/342]]. It provides the [[optimal patent val]] for 7-, 11-, 13-, and 17-limit [[heinz]] temperament and the rank-3 temperament [[Gamelismic family #Ominous|ominous]] in the 13- and 17-limit.
149edo is the smallest division which is [[consistency|uniquely consistent]] through the [[17-odd-limit]]. It has a general flat tendency, with the fifth 1.28{{c}} flat, but the major third is a quarter of a cent sharp.  
 
In the 5-limit it [[tempering out|tempers out]] the [[sensipent comma]], 78732/78125; in the [[7-limit]], [[1029/1024]], [[3136/3125]] and [[19683/19600]]; in the [[11-limit]] [[385/384]] and [[441/440]]; in the [[13-limit]] [[351/350]], [[676/675]] and [[729/728]]; in the [[17-limit]] [[273/272]] and [[561/560]]; in the [[19-limit]] [[286/285]] and [[343/342]]. It provides the [[optimal patent val]] for 7-, 11-, 13-, and 17-limit [[heinz]] temperament and the rank-3 temperament [[gamelismic family #Ominous|ominous]] in the 13- and 17-limit.
 
It is also usable in the [[23-limit]], only missing [[19/11]], [[21/11]], and their [[octave complement]]s in the [[23-odd-limit]]. In the [[27-odd-limit]], additional inconsistencies include [[25/21]], [[25/22]], [[27/20]], [[27/25]], [[27/19]], and their octave complements.


=== Prime harmonics ===
=== Prime harmonics ===
Line 9: Line 13:


=== Subsets and supersets ===
=== Subsets and supersets ===
149edo is the 35th [[prime edo]].  
149edo is the 35th [[prime edo]]. As such, it does not contain any nontrivial subset edos.
 
[[894edo]], which slices its step in six, is a notable system for the higher-limit, also consistent to the 17-odd-limit.  


== Regular temperament properties ==
== Regular temperament properties ==
{{comma basis begin}}
{| class="wikitable center-4 center-5 center-6"
|-
! rowspan="2" | [[Subgroup]]
! rowspan="2" | [[Comma list]]
! rowspan="2" | [[Mapping]]
! rowspan="2" | Optimal<br>8ve stretch (¢)
! colspan="2" | Tuning error
|-
! [[TE error|Absolute]] (¢)
! [[TE simple badness|Relative]] (%)
|-
|-
| 2.3
| 2.3
| {{monzo| -236 149 }}
| {{Monzo| -236 149 }}
| {{mapping| 149 236 }}
| {{Mapping| 149 236 }}
| +0.405
| +0.405
| 0.405
| 0.405
Line 23: Line 38:
| 2.3.5
| 2.3.5
| 78732/78125, {{monzo| -34 20 1 }}
| 78732/78125, {{monzo| -34 20 1 }}
| {{mapping| 149 236 346 }}
| {{Mapping| 149 236 346 }}
| +0.232
| +0.232
| 0.411
| 0.411
Line 30: Line 45:
| 2.3.5.7
| 2.3.5.7
| 1029/1024, 3136/3125, 19683/19600
| 1029/1024, 3136/3125, 19683/19600
| {{mapping| 149 236 346 418 }}
| {{Mapping| 149 236 346 418 }}
| +0.386
| +0.386
| 0.445
| 0.445
Line 37: Line 52:
| 2.3.5.7.11
| 2.3.5.7.11
| 385/384, 441/440, 3136/3125, 19683/19600
| 385/384, 441/440, 3136/3125, 19683/19600
| {{mapping| 149 236 346 418 515 }}
| {{Mapping| 149 236 346 418 515 }}
| +0.521
| +0.521
| 0.481
| 0.481
Line 44: Line 59:
| 2.3.5.7.11.13
| 2.3.5.7.11.13
| 351/350, 385/384, 441/440, 676/675, 847/845
| 351/350, 385/384, 441/440, 676/675, 847/845
| {{mapping| 149 236 346 418 515 551 }}
| {{Mapping| 149 236 346 418 515 551 }}
| +0.567
| +0.567
| 0.451
| 0.451
Line 51: Line 66:
| 2.3.5.7.11.13.17
| 2.3.5.7.11.13.17
| 273/272, 351/350, 385/384, 441/440, 676/675, 847/845
| 273/272, 351/350, 385/384, 441/440, 676/675, 847/845
| {{mapping| 149 236 346 418 515 551 609 }}
| {{Mapping| 149 236 346 418 515 551 609 }}
| +0.495
| +0.495
| 0.453
| 0.453
| 5.62
| 5.62
{{comma basis end}}
|}


=== Rank-2 temperaments ===
=== Rank-2 temperaments ===
{{rank-2 begin}}
{| class="wikitable center-all left-5"
|+ style="font-size: 105%;" | Table of rank-2 temperaments by generator
|-
! Periods<br>per 8ve
! Generator*
! Cents*
! Associated<br>ratio*
! Temperaments
|-
|-
| 1
| 1
Line 125: Line 147:
| 11/8
| 11/8
| [[Heinz]]
| [[Heinz]]
{{rank-2 end}}
|}
{{orf}}
<nowiki/>* [[Normal forms #Equave-reduced-generator form|Octave-reduced form]], reduced to the first half-octave, and [[normal forms #Minimal-generator form|minimal form]] in parentheses if distinct


[[Category:Heinz]]
[[Category:Heinz]]