28/15: Difference between revisions

m Improve categories
m Misc. edits, categories
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{{Infobox Interval
{{Infobox Interval
| Icon =
| Ratio = 28/15
| Ratio = 28/15
| Monzo = 2 -1 -1 1
| Monzo = 2 -1 -1 1
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}}
}}


'''28/15''' is a [[7-limit]] just interval of about 1080.6 [[cent]]s. It is well approximated by [[10edo]] (9\10).  
'''28/15''' is a [[7-limit]] [[just intonation]] interval of about 1080.6 [[cent]]s. It is well approximated by [[10edo]] (9\10).  


== Terminology ==
== 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 [[Functional Just System]], viewed as the [[4096/2187|Pythagorean diminished octave (4096/2187)]] altered by [[5120/5103]].  
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]].  


== See also ==
== See also ==
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[[Category:7-limit]]
[[Category:7-limit]]
[[Category:Interval]]
[[Category:Seventh]]
[[Category:Ratio]]
[[Category:Major seventh]]
[[Category:Octave]]
[[Category:Octave]]
[[Category:Diminished octave]]
[[Category:Diminished octave]]