14/13: Difference between revisions
Included the name of the comma that acts as the difference between a stack of three 14/13 intervals and a 5/4 Major 3rd. |
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{{Infobox Interval | |||
| | | Name = tridecimal 2/3-tone, trienthird, tridecimal supraminor second, sinaic | ||
| Color name = 3uz2, thuzo 2nd | |||
| Sound = jid_14_13_pluck_adu_dr220.mp3 | |||
}} | |||
128. | '''14/13''', the '''tridecimal 2/3-tone''' or '''trienthird''' (one-third third) is a somewhat exotic 13-limit interval measuring about 128.3¢, which is almost exactly 1/3 of a [[5/4]] major third- a stack of three trienthirds falling short of a 5/4 major third by a [[10985/10976|cantonisma]]. | ||
[[ | The trienthird was a favorite interval of [[Wikipedia:Avicenna|Avicenna]] (Ibn Sina) for his scale constructions, and may be considered a smaller size of neutral second (a second between major and minor). Thus intervals close in size to it have been called '''sinaics''' by [[Zhea Erose]]. It may be called the '''tridecimal supraminor second''' as well, analogous to [[21/13]] being the ''tridecimal supraminor sixth''. | ||
14/13 | In [[13-limit]] [[just intonation]], 14/13 represents the difference in size between the tridecimal minor third of [[13/11]] and undecimal major third of [[14/11]]. It is also the difference between [[13/10]] and [[7/5]]; [[13/12]] and [[7/6]]; [[13/9]] and [[14/9]], and of course [[13/8]] and [[7/4]] and the inversions of the above. As it combines the primes 7 and 13, it appears in JI subgroup tunings involving those primes. | ||
== See also == | |||
* [[13/7]] – its [[octave complement]] | |||
* [[Gallery of just intervals]] | |||
[[Category:Second]] | |||
[[Category:Neutral second]] | |||
[[Category:Supraminor second]] | |||
[[Category: | [[Category:Semitone]] | ||
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