15625/15552: Difference between revisions

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Tempered out in [[Hanson]].
{{Interwiki
| en = 15625/15552
| de = 15625/15552
| es =
| ja =
}}
{{Infobox Interval
| Ratio = 15625/15552
| Name = kleisma
| Color name = y<sup>6</sup>-2, tribiyo negative 2nd,<br>Tribiyo comma
| Comma = yes
}}
{{Wikipedia|Kleisma}}


[[Category:Stub]]
'''15625/15552''', which is sometimes called the '''kleisma''', is the [[small comma|small]] [[5-limit]] [[comma]] that separates a stack of six classic minor thirds of [[6/5]] with [[3/1]], or a stack of five 6/5's with [[5/2]], or a stack of three diptolemaic chromatic semitones ([[25/24]]) with the Pythagorean whole tone ([[9/8]]). It is also the difference between the classic chromatic semitone ([[25/24]]) and the greater diesis ([[648/625]]), which is also known as the diminished comma.
 
Like the [[magic comma]], instead of being [[tempering out|tempered out]] in [[12edo]], it is inflated to an entire semitone—six 6/5's make an augmented eleventh (18 steps), while 3/1 is a perfect twelfth (19 steps); conversely, 25/24 is mapped to a semitone while 648/625 is tempered out. Its [[square superparticular #Glossary|S-expression]] of S25<sup>2</sup>⋅S26 directly implies that it is expressible as ([[25/24]])<sup>2</sup>/([[27/25]]).
 
== Temperaments ==
Tempering out this comma in the 5-limit leads to the [[kleismic]] temperament.
 
See [[Kleismic family]] for the rank-2 temperament family where it is tempered out and [[Kleismic rank-3 family]] for the rank-3 temperament family where it is tempered out.
 
== Etymology ==
This comma was named by {{w|Shohé Tanaka}} in 1890.
 
== See also ==
* [[Kleisma]]
 
== External links ==
* [http://tonalsoft.com/enc/k/kleisma.aspx Tonalsoft Encyclopedia | ''Kleisma'']
 
[[Category:Kleismic]]
[[Category:Commas named by translating something into another language]]