8/7: Difference between revisions

Xenwolf (talk | contribs)
cats
m +FJS name; cleanup
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| Monzo = 3 0 0 -1
| Monzo = 3 0 0 -1
| Cents = 231.17409
| Cents = 231.17409
| Name = septimal supermajor second
| Name = septimal whole tone, <br>supermajor second, <br>septimal major second
| Color name = r2, ru 2nd
| FJS name = M2<sub>7</sub>
| Sound = jid_8_7_pluck_adu_dr220.mp3
| Sound = jid_8_7_pluck_adu_dr220.mp3
| Color name = r2, ru 2nd
}}
}}


In [[Just Intonation]], 8/7 is the "septimal supermajor second" of approximately 231.2¢. Although it falls between the familiar major second and minor third of [[12edo]], it generally sounds more like a wide second than a narrow third. It can be found between the 7th and 8th overtones in the harmonic series and is thus a [[superparticular]] ratio. In [[7-limit]] JI and higher, it is treated as a consonance, particularly in the context of a chord such as 4:5:6:7:8, where it appears between the harmonic seventh ([[7/4]]) and octave. It differs from the Pythagorean major second of [[9/8]] by [[64/63]], a microtone of about 27.3¢. It's close in size to one step of 5edo = 240¢.
In [[Just Intonation]], 8/7 is the '''supermajor second''' or '''septimal major second''' of approximately 231.2¢. Although it falls between the familiar major second and minor third of [[12edo]], it generally sounds more like a wide second than a narrow third. It can be found between the 7th and 8th overtones in the harmonic series and is thus a [[superparticular]] ratio. In [[7-limit]] JI and higher, it is treated as a consonance, particularly in the context of a chord such as 4:5:6:7:8, where it appears between the harmonic seventh ([[7/4]]) and octave. It differs from the Pythagorean major second of [[9/8]] by [[64/63]], a microtone of about 27.3¢. It's close in size to one step of 5edo = 240¢.


== See also ==
== See also ==
* [[7/4]] – its [[octave complement]]
* [[21/16]] – its [[fifth complement]]
* [[Gallery of Just Intervals]]
* [[Gallery of Just Intervals]]
* [http://en.wikipedia.org/wiki/Septimal_whole_tone Septimal whole tone - Wikipedia].
* [[Wikipedia:Septimal_whole_tone|Septimal whole tone - Wikipedia]]


[[Category:7-limit]]
[[Category:7-limit]]
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[[Category:Interval ratio]]
[[Category:Interval ratio]]
[[Category:Second]]
[[Category:Second]]
[[Category:Whole tone]]
[[Category:Superparticular]]
[[Category:Superparticular]]
[[Category:Whole tone]]
[[Category:Over-7]]
[[Category:Over-7]]
[[Category:Subharmonic]]
[[Category:Subharmonic]]
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