Greater tendoneutralisma: Difference between revisions

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| Ratio = 815730721/805306368
| Ratio = 815730721/805306368
| Name = greater tendoneutralisma
| Name = greater tendoneutralisma
| Color name = Laquadbitho comma
| Comma = yes
| Comma = yes
}}
}}
The '''greater tendoneutralisma''' is a [[small comma]] of the 2.3.13 [[subgroup]] which is the amount by which a stack of eight [[16/13]]'s minus two [[octave]]s falls short of [[4/3]]; that is, it is equal to ([[16/3]])/([[16/13]])<sup>8</sup> and so equivalently also to ([[13/3]])/([[16/13]])<sup>7</sup>. Although the comma is similar in size to something like 81/80, it is quite accurate because the error can be split evenly over eight 16/13's, so that the pure-3's tuning (very close to [[53edo]]) has 13 off by only 2.78{{cent}}. A more accurate (lower damage) way of achieving the same (finding 3 by stacking 13's) is by tempering the [[lesser tendoneutralisma]]. Very importantly, both are distinct ways of mapping 2.3.13, so that you cannot combine them unless you want to use the trivial tuning of [[10edo]], so that edos > 10 which have a good 3 and 13 will usually pick between one of these two mappings. (A much simpler but relatively much higher error way of mapping 3 for those that prefer sharp fifths is by tempering ([[16/13]])<sup>2</sup>/([[3/2]]) = [[512/507]].)
The '''greater tendoneutralisma''' is a [[small comma]] of the 2.3.13 [[subgroup]] which is the amount by which a stack of eight [[16/13]]'s minus two [[octave]]s falls short of [[4/3]]; that is, it is equal to ([[16/3]])/([[16/13]])<sup>8</sup> and so equivalently also to ([[13/3]])/([[16/13]])<sup>7</sup>.  


== Temperaments ==
== Temperaments ==
Although the comma is similar in size to something like 81/80, the corresponding temperament is quite accurate because the error can be split evenly over eight 16/13's, so that the pure-3's tuning (very close to [[53edo]]) has 13 off by only 2.78{{cent}}. A more accurate (lower damage) way of achieving the same (finding 3 by stacking 13's) is by tempering the [[lesser tendoneutralisma]]. Very importantly, both are distinct ways of mapping 2.3.13, so that you cannot combine them unless you want to use the trivial tuning of [[10edo]], so that edos > 10 which have a good 3 and 13 will usually pick between one of these two mappings. A much simpler but relatively much higher error way of mapping 3 for those that prefer sharp fifths is by tempering ([[16/13]])<sup>2</sup>/([[3/2]]) = [[512/507]].
=== Greater Tendoneutralic ===
=== Greater Tendoneutralic ===
Tempering out the greater tendoneutralisma in 2.3.13 leads to the highly notable 10 & 53 temperament, where [[10edo]] is the trivial tuning approximately equal to the pure-13's tuning and [[53edo]] is the tuning practically equal to the pure-3's tuning, although [[43edo]] is an interesting choice for combining this temperament with meantone and [[63edo]] is an interesting choice if you prefer slightly sharp fifths. This temperament is related to [[submajor (temperament)|submajor]], which extends it to the full [[13-limit]].
Tempering out the greater tendoneutralisma in 2.3.13 leads to the highly notable 10 & 53 temperament, where [[10edo]] is the trivial tuning approximately equal to the pure-13's tuning and [[53edo]] is the tuning practically equal to the pure-3's tuning, although [[43edo]] is an interesting choice for combining this temperament with meantone and [[63edo]] is an interesting choice if you prefer slightly sharp fifths. [[Buzzardsmic clan #Demibuzzard|Demibuzzard]] is an extension of this which maps primes 5 and 7; [[Submajor (temperament)|submajor]] and [[interpental]] map prime 11 and thus the full [[13-limit]].


[[Subgroup]]: 2.3.13
[[Subgroup]]: 2.3.13
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{{Optimal ET sequence|legend=1| 10, 33, 43, 53, 202, 255f, 308f, 361f }}
{{Optimal ET sequence|legend=1| 10, 33, 43, 53, 202, 255f, 308f, 361f }}


[[Badness]] (Dirichlet): 3.037
[[Badness]] (Sintel): 3.037


== See also ==
== See also ==
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* [[512/507]]
* [[512/507]]
* [[Tridecapyth comma]]
* [[Tridecapyth comma]]
[[Category:Commas with unknown etymology]]