224/135: Difference between revisions

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Created page with "{{Infobox Interval | JI glyph = | Ratio = 224/135 | Monzo = 5 -3 -1 1 | Cents = 876.64719 | Name = septimal narrow major sixth, <br> marvelous major sixth | Color name = | F..."
 
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{{Infobox Interval
{{Infobox Interval
| JI glyph =
| Name = septimal narrow major sixth, marvel-ptolemaic major sixth, aberschismic diminished seventh
| Ratio = 224/135
| Color name = zg7, zogu 7th
| Monzo = 5 -3 -1 1
| Cents = 876.64719
| Name = septimal narrow major sixth, <br> marvelous major sixth
| Color name =  
| FJS name =
| Sound =
}}
}}
 
'''224/135''', conventionally known as the '''septimal narrow major sixth''' or '''marvel-ptolemaic major sixth''', is a [[7-limit]] interval that is flat of the [[27/16|Pythagorean major sixth]] by an [[3645/3584|aberdiesis (3645/3584)]], i.e. a [[81/80|syntonic comma]] plus a [[225/224|marvel comma (225/224)]]. This interval functionally doubles as a type of diminished seventh, flat of the [[32768/19683|Pythagorean diminished seventh]] by an [[aberschisma|aberschisma (5120/5103)]]. This gives rise to the more precise name '''aberschismic diminished seventh'''. In fact it forms the difference between [[16/9]] and [[15/14]].  
'''224/135''', the '''septimal narrow minor sixth''', or '''marvelous minor sixth''', is a [[7-limit]] interval that forms the difference between [[7/4]] and [[135/128]], and between [[16/9]] and [[15/14]]. Given that 135/128 is a type of chromatic semitone, this means 224/135 is functionally a type of diminished seventh.


== See also ==
== See also ==
* [[135/112]] – its octave complement
* [[Gallery of just intervals]]


* [[135/112]] -- its octave complement
[[Category:Sixth]]
* [[Gallery of just intervals]]
[[Category:Major sixth]]
[[Category:Seventh]]
[[Category:Diminished seventh]]
[[Category:Aberschismic]]

Latest revision as of 13:16, 31 August 2026

Interval information
Ratio 224/135
Factorization 25 × 3-3 × 5-1 × 7
Monzo [5 -3 -1 1⟩
Size in cents 876.6472 ¢
Names septimal narrow major sixth,
marvel-ptolemaic major sixth,
aberschismic diminished seventh
Color name zg7, zogu 7th
FJS name [math]\displaystyle{ \text{d7}^{7}_{5} }[/math]
Special properties reduced
Tenney norm (log2 nd) 14.8842
Weil norm (log2 max(n, d)) 15.6147
Wilson norm (sopfr(nd)) 31
Open this interval in xen-calc

224/135, conventionally known as the septimal narrow major sixth or marvel-ptolemaic major sixth, is a 7-limit interval that is flat of the Pythagorean major sixth by an aberdiesis (3645/3584), i.e. a syntonic comma plus a marvel comma (225/224). This interval functionally doubles as a type of diminished seventh, flat of the Pythagorean diminished seventh by an aberschisma (5120/5103). This gives rise to the more precise name aberschismic diminished seventh. In fact it forms the difference between 16/9 and 15/14.

See also