Ennealimma: Difference between revisions

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{{Infobox Interval
| Ratio = 7629394531250/7625597484987
| Monzo = 1 -27 18
| Name = ennealimma
| Color name = sy<sup>18</sup>-3, satritribiyo negative 3rd
| Comma = yes
}}
The '''ennealimma''', meaning ''nine limmas'', with [[monzo]] {{monzo| 1 -27 18 }}, is a [[5-limit]] [[unnoticeable comma]] measuring about 0.86 [[cent]]s. It is the amount by which a stack of nine [[27/25|large limmas]] falls short of the [[octave]].  
The '''ennealimma''', meaning ''nine limmas'', with [[monzo]] {{monzo| 1 -27 18 }}, is a [[5-limit]] [[unnoticeable comma]] measuring about 0.86 [[cent]]s. It is the amount by which a stack of nine [[27/25|large limmas]] falls short of the [[octave]].  


== Temperament ==
== Temperament ==
Tempering out this comma leads to the 5-limit version of the [[ennealimmal]] temperament, which remarkably splits the octave into nine equal parts.  
Tempering out this comma leads to the 5-limit version of the [[ennealimmal]] temperament, which remarkably splits the octave into nine equal parts. Since the [[7-limit]] temperament (definable by tempering out both [[2401/2400]] and [[4375/4374]], the two smallest superparticular ratios in the 7-limit) is far more natural to think of than the 5-limit, the 5-limit temperament is only provided below for bookkeeping purposes.
 
=== Ennealimmal ===
''For the 7-limit temperament, see [[Septiennealimmal clan#Ennealimmal]].''
 
[[Subgroup]]: 2.3.5
 
[[Comma list]]: 7629394531250/7625597484987
 
{{Mapping|legend=1|9 1 1|0 2 3}}
 
[[Optimal tuning]] ([[CTE]]): ~27/25 = 1\9, ~5/3 = 884.319
 
[[Support]]ing [[ET]]s: {{EDOs|612, 171, 441, 99, 270, 72, 27, 45, 711, 18bc, 9bcc, 243, 369, 126 }}
 
== Etymology ==
The name consists of Greek ''ennea-'' ("nine") + ''limma'', coined by [[Paul Erlich]] and [[Gene Ward Smith]] in 2001<ref>[https://yahootuninggroupsultimatebackup.github.io/tuning/topicId_29667.html Yahoo! Tuning Group | ''Name that comma!'']</ref>.  


== See also ==
== See also ==
* [[Unnoticeable comma]]
* [[Unnoticeable comma]]
* [[Septimal ennealimma]]
== Notes ==


[[Category:5-limit]]
[[Category:Unnoticeable commas]]
[[Category:Ennealimmal]]
[[Category:Ennealimmal]]
[[Category:Commas named for their periods per equave]]