225/128: Difference between revisions

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'''225/128'''
{{Infobox Interval
|-7 2 2>
| Name = diptolemaic augmented sixth, Neapolitan augmented sixth, marvel 5-limit harmonic seventh
| Color name = Lyy6, layoyo 6th
| Sound = jid_225_128_pluck_adu_dr220.mp3
}}


976.5374 cents
'''225/128''', the '''diptolemaic augmented sixth''' or '''Neapolitan augmented sixth''', is the interval between the [[5-limit]] minor second, [[16/15]], and the major seventh, [[15/8]]. It is flat of the [[59049/32768|Pythagorean augmented sixth]] by two syntonic commas, hence the first name, whereas the second name comes on account of this interval occurring in precisely this capacity in just Neapolitan scales.  


[[File:jid_225_128_pluck_adu_dr220.mp3]] [[:File:jid_225_128_pluck_adu_dr220.mp3|sound sample]]
It is a marvel comma, [[225/224]], sharp of the harmonic seventh, [[7/4]], and so [[tempering out]] 225/224, which is [[marvel]] temperament, equates the two. As such, it can also be called the '''marvel 5-limit harmonic seventh'''.


The marvel five-limit harmonic seventh, 225/128, is the interval between the [[5-limit|5-limit]] minor second, [[16/15|16/15]], and the major second, [[15/8|15/8]]. It is a marvel comma, 225/224, sharp of the harmonic seventh, [[7/4|7/4]], and so tempering out 225/224, which is [[Marvel|marvel]] temperament, equates the two. Marvel tempering is a useful method of tempering the 5-limit to include septimal harmony, making two minor seconds a supermajor second, [[8/7|8/7]] and two major seconds into [[7/6|7/6]].
== See also ==
* [[256/225]] – its [[octave complement]]
* [[Gallery of just intervals]]
* [[:File:Ji-225-128-csound-foscil-220hz.mp3]] – another sound example
 
[[Category:Sixth]]
[[Category:Augmented sixth]]