28/15: Difference between revisions
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{{Infobox Interval | {{Infobox Interval | ||
| 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 | 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: | [[Category:Seventh]] | ||
[[Category: | [[Category:Major seventh]] | ||
[[Category:Octave]] | [[Category:Octave]] | ||
[[Category:Diminished octave]] | [[Category:Diminished octave]] | ||
Revision as of 20:56, 15 December 2021
| Interval information |
[sound info]
28/15 is a 7-limit just intonation interval of about 1080.6 cents. 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.