17/15: Difference between revisions

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'''17/15'''
{{Infobox Interval
|0 -1 -1 0 0 0 1>
| Name = diatismic whole tone
| Color name = 17og3, sogu 3rd
| Sound = jid_17_15_pluck_adu_dr220.mp3
}}
In [[17-limit]] [[just intonation]], '''17/15''' is the '''diatismic whole tone''' measuring about 216.7{{cent}}. It exceeds the [[9/8|Pythagorean whole tone (9/8)]] by a [[136/135|diatisma (136/135)]], hence the name. It is the [[mediant]] of 9/8 and [[8/7]], as it is (9 + 8)/(8 + 7). It is found in the [[harmonic series]] between the 17th and 15th [[harmonic]]s.


216.6867 cents
== Approximation ==
[[11edo]]'s second degree, measuring approximately 218.2 cents, is close in size to 17/15 – indeed, the 11edo system has excellent approximations of the 15th and 17th harmonics, and so this harmonic function is plausible in 11edo.


[[File:jid_17_15_pluck_adu_dr220.mp3]] [[:File:jid_17_15_pluck_adu_dr220.mp3|sound sample]]
{{Interval edo approximation|17/15}}


In [[17-limit|17-limit]] [[Just_intonation|Just Intonation]], 17/15 is the "septendecimal whole tone" measuring about 216.7¢. It is the [[mediant|mediant]] between [[9/8|9/8]] and [[8/7|8/7]], as it is (9+8)/(8+7). It is found in the [[OverToneSeries|harmonic series]] between the 17th and 15th overtones. [[11edo|11edo]]'s second degree, measuring approximately 218.2¢, is close in size to 17/15 -- indeed, the 11edo system has excellent approximations of the 15th and 17th harmonics, and so this harmonic function is plausible in 11edo.
== Temperaments ==
The radical interval sqrt(2)/(17/15) is three cents flat of a [[5/4]] major third, and this or 17/15 itself can be used for a tuning for [[wizard]] and its various relatives (lizard, gizzard, etc.).


√2/(17/15) is three cents flat of a 5/4 major third, and this or 17/15 itself can be used for a tuning for wizard and its various relatives (lizard, gizzard, etc.).
== See also ==
* [[30/17]] – its [[octave complement]]
* [[20/17]] – its [[fourth complement]]
* [[Gallery of just intervals]]


See: [[Gallery_of_Just_Intervals|Gallery of Just Intervals]]      [[Category:17-limit]]
[[Category:Second]]
[[Category:just_interval]]
[[Category:Whole tone]]
[[Category:sound_example]]
[[Category:Diatismic]]