33/25: Difference between revisions
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{{Infobox Interval | {{Infobox Interval | ||
| Name = | | Name = ptolemismic fourth, 5edo-esque fourth | ||
| Color name = 1ogg4, logugu 4th | | Color name = 1ogg4, logugu 4th | ||
| Sound = jid_33_25_pluck_adu_dr220.mp3 | | Sound = jid_33_25_pluck_adu_dr220.mp3 | ||
}} | }} | ||
'''33/25''', the ''' | '''33/25''', the '''ptolemismic fourth''' or the '''5edo-esque fourth''', is an [[11-limit]] interval. It is flat of [[4/3]], the perfect fourth, by [[100/99]], the ptolemisma, hence the name. It is also sharp of [[21/16]], the subfourth, by [[176/175]], the valinorsma. Being [[11/8]] diminished by [[25/24]], it is technically a semidiminished fourth aka paraminor fourth. | ||
== Approximation == | == Approximation == | ||
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[[Category:Fourth]] | [[Category:Fourth]] | ||
[[Category:Subfourth]] | [[Category:Subfourth]] | ||
[[Category:Ptolemismic]] | |||
Latest revision as of 02:03, 9 October 2024
| Interval information |
5edo-esque fourth
[sound info]
33/25, the ptolemismic fourth or the 5edo-esque fourth, is an 11-limit interval. It is flat of 4/3, the perfect fourth, by 100/99, the ptolemisma, hence the name. It is also sharp of 21/16, the subfourth, by 176/175, the valinorsma. Being 11/8 diminished by 25/24, it is technically a semidiminished fourth aka paraminor fourth.
Approximation
Measuring about 480.6 ¢, 33/25 is very well approximated by 5edo and its supersets.
See also
- 50/33 – its octave complement
- 25/22 – its fifth complement
- Gallery of just intervals
- File:Ji-33-25-csound-foscil-220hz.mp3 – another sound example