32/17: Difference between revisions
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'''32/17''' | {{Infobox Interval | ||
| Name = septendecimal major seventh, septendecimal diminished octave | |||
| Color name = 17u7, su 7th | |||
| Sound = jid_32_17_pluck_adu_dr220.mp3 | |||
}} | |||
In [[17-limit]] [[just intonation]], '''32/17''' is the '''septendecimal major seventh''' or the '''septendecimal diminished octave''', depending on how one views it. It is also the octave-reduced 17th [[subharmonic]]. Its inversion is [[17/16]], the octave-reduced 17th harmonic. Measuring about 1095{{cent}}, it is the [[mediant]] between [[15/8]] and [[17/9]]. | |||
== Terminology and notation == | |||
There exists a disagreement in different conceptualization systems on whether 32/17 should be a major seventh or a diminished octave. The major seventh view corresponds to [[Functional Just System]], with the formal comma [[4131/4096]] separating it from [[243/128]], the Pythagorean major seventh. The diminished octave view corresponds to [[Helmholtz-Ellis notation]], with the formal comma [[2187/2176]] separating it from [[4096/2187]], the Pythagorean diminished octave. | |||
[[ | In practice, the interval category may, arguably, vary by context. One solution for the JI user who uses expanded [[circle-of-fifths notation]] is to prepare a [[Pythagorean comma]] accidental so that the interval can be notated in either category. | ||
== See also == | |||
* [[17/16]] – its [[octave complement]] | |||
* [[Gallery of just intervals]] | |||
[[Category:Seventh]] | |||
[[Category:Major seventh]] | |||
[[Category:Octave]] | |||
[[Category:Diminished octave]] |