357/256: Difference between revisions

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Created page with "{{Infobox Interval | Name = merry tritone, octave-reduced 357th harmonic | Color name = 17oz5, sozo 5th }} The '''merry tritone''', '''357/256''', is a close approximation to..."
 
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The '''merry tritone''', '''357/256''', is a close approximation to 12\25, hence the name. It is also a rather good approximation to [[32/23]] at about four cents (or [[8211/8192]]) away.
The '''merry tritone''', '''357/256''', is a close approximation to 12\25, hence the name. It is also a rather good approximation to [[32/23]] at about four cents (or [[8211/8192]]) away.


While it is a fifth according to color notation, it is [[HC17]], and so its status as a fourth or a fifth is ambiguous.
== Terminology and notation ==
Conceptualization systems disagree on whether [[17/16]] should be a [[diatonic semitone]] or a [[chromatic semitone]], and as a result the disagreement propagates to all intervals of [[harmonic class|HC17]]. See [[17-limit]] for a detailed discussion.  


For 357/256 specifically:
* In [[Functional Just System]], it is a diminished fifth, separated by [[4131/4096]] from the [[1024/729|Pythagorean diminished fifth (1024/729)]] less a [[64/63]]
* In [[Helmholtz-Ellis notation]], it is an augmented fourth, separated by [[2187/2176]] from the [[729/512|Pythagorean augmented fourth (729/512)]] less a [[64/63]].
The term ''merry tritone'' omits the distinction and only describes its melodic property i.e. the size.
[[Category:Tritone]]
[[Category:Tritone]]
[[Category:Octave-reduced harmonics]]
[[Category:Octave-reduced harmonics]]