28/15: Difference between revisions

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m Text replacement - " {{Interval_Edo_Approximation | " to "{{Interval edo approximation|"
 
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{{Infobox Interval
{{Infobox Interval
| Icon =
| Name = septimal grave major seventh
| Ratio = 28/15
| Color name = zg8, zogu octave
| Monzo = 2 -1 -1 1
| Cents = 1080.55719
| Name = septimal diatonic major seventh
| Color name =  
| FJS name = d8<sup>7</sup><sub>5</sub>
| Sound = jid_28_15_pluck_adu_dr220.mp3
| Sound = jid_28_15_pluck_adu_dr220.mp3
}}
}}


'''28/15''', the '''septimal diatonic major seventh''', is a [[7-limit]] just interval of about 1080.6 [[cent]]s.
'''28/15''' is a [[7-limit]] [[just intonation]] interval of about 1080.6 [[cent]]s. It is well approximated by [[10edo]] (9\10).
 
== Terminology ==
Despite being approximated by the major seventh in systems like [[septimal meantone]], and even being called the '''septimal grave major seventh''' by some musicians, 28/15 is a diminished octave in just intonation notation systems such as [[Sagittal notation]], [[Helmholtz-Ellis notation]] and the [[Functional Just System]], viewed as the Pythagorean diminished octave ([[4096/2187]]) altered by [[5120/5103]].  
== Approximation ==
{{Interval edo approximation|28/15}}


== See also ==
== See also ==
 
* [[15/14]] – its [[octave complement]]
* [[Gallery of just intervals]]
* [[Gallery of just intervals]]
* [[15/14]] – its [[octave complement]]
* [[10edo]] has a good approximation


[[Category:7-limit]]
[[Category:Interval ratio]]
[[Category:Listen]]
[[Category:Seventh]]
[[Category:Seventh]]
[[Category:Major seventh]]
[[Category:Major seventh]]
 
[[Category:Octave]]
[[Category:Todo:expand]]
[[Category:Diminished octave]]
[[Category:Todo:improve synopsis]]
{{todo|improve synopsis}}
[[Category:Todo:add color name]]