256/225: Difference between revisions

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{{Infobox Interval
{{Infobox Interval
| Name = marvel five-limit subharmonic second, Neapolitan diminished third
| Name = diptolemaic diminished third, Neapolitan diminished third, marvel 5-limit subharmonic second
| Color name = sgg3, sagugu 3rd
| Color name = sgg3, sagugu 3rd
| Sound = Ji-256-225-csound-foscil-220hz.mp3
| Sound = Ji-256-225-csound-foscil-220hz.mp3
}}
}}


'''256/225''', the '''marvel five-limit subharmonic second''', is the interval that results from stacking two [[16/15]] minor seconds, and, on account of this interval occurring in precisely this manner in Neapolitan scales, this interval can also be referred to as as the '''Neapolitan diminished third'''. It is a marvel comma ([[225/224]]) flat of the subharmonic second, [[8/7]], and so tempering out 225/224, which is [[marvel]] temperament, equates the two. It is also [[5632/5625]] sharp of [[25/22]].
'''256/225''', the '''diptolemaic diminished third''' or '''Neapolitan diminished third''', is the interval that results from stacking two [[16/15]] minor seconds. It is sharp of the [[65536/59049|Pythagorean diminished third]] by two [[81/80|syntonic commas]], hence the first name, whereas the second name comes on account of this interval occurring in precisely this manner in Neapolitan scales.  
 
It is a marvel comma ([[225/224]]) flat of the subharmonic second, [[8/7]], and so [[tempering out]] 225/224, which is [[marvel]] temperament, equates the two. As such, it can also be called the '''marvel 5-limit subharmonic second'''. It is also [[5632/5625]] sharp of [[25/22]].


== See also ==
== See also ==
* [[225/128]] - its [[octave complement]]
* [[225/128]] its [[octave complement]]
* [[Gallery of just intervals]]
* [[Gallery of just intervals]]


[[Category:Second]]
[[Category:Third]]
[[Category:Marvel]]
[[Category:Diminished third]]

Latest revision as of 09:06, 18 January 2026

Interval information
Ratio 256/225
Factorization 28 × 3-2 × 5-2
Monzo [8 -2 -2
Size in cents 223.4626¢
Names diptolemaic diminished third,
Neapolitan diminished third,
marvel 5-limit subharmonic second
Color name sgg3, sagugu 3rd
FJS name [math]\displaystyle{ \text{d3}_{5,5} }[/math]
Special properties reduced,
reduced subharmonic
Tenney norm (log2 nd) 15.8138
Weil norm (log2 max(n, d)) 16
Wilson norm (sopfr(nd)) 32

[sound info]
Open this interval in xen-calc

256/225, the diptolemaic diminished third or Neapolitan diminished third, is the interval that results from stacking two 16/15 minor seconds. It is sharp of the Pythagorean diminished third by two syntonic commas, hence the first name, whereas the second name comes on account of this interval occurring in precisely this manner in Neapolitan scales.

It is a marvel comma (225/224) flat of the subharmonic second, 8/7, and so tempering out 225/224, which is marvel temperament, equates the two. As such, it can also be called the marvel 5-limit subharmonic second. It is also 5632/5625 sharp of 25/22.

See also