7edo: Difference between revisions

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== Theory ==

[[File:7edo scale.mp3|thumb|A chromatic 7edo scale on C.]]

~~Equal-heptatonic~~ scales are used in non-western music in African cultures ~~as well as an integral part of early Chinese music~~<ref>~~Robotham, Donald Keith and Gerhard Kubik.~~ [https://www.britannica.com/art/African-music ''African music'', Encyclopedia Britannica.]</ref>. Also Georgian music seems to be based on near-equal 7-step scales. It has been speculated in "Indian music:history and structure", that the Indian three-sruti interval of 165 cents is close enough to be mistaken for 171 cents. (or 1.71 semitones).

[[Equiheptatonic]] scales close to 7edo are used in non-western music in some [[African]] cultures<ref>[https://www.britannica.com/art/African-music ''African music'', Encyclopedia Britannica.]</ref> as well as an integral part of early [[Chinese]] music<ref>Robotham, Donald Keith and Gerhard Kubik.</ref>. Also [[Georgian]] music seems to be based on near-equal 7-step scales. It has been speculated in "Indian music:history and structure", that the [[Indian]] three-sruti interval of 165 cents is close enough to be mistaken for 171 cents. (or 1.71 semitones), one step of 7edo.

7edo can be thought of as the result of stacking seven [[11/9]]'s on top of each other, and then tempering to remove the comma {{monzo| -2 -14 0 0 7 }}. As a temperament, [[William Lynch]] gives it the name "Neutron[7]" just as the whole tone scale of [[12edo]] is known as "Hexe[6]".

@@ Line 10: / Line 10: @@
 == Theory ==
 [[File:7edo scale.mp3|thumb|A chromatic 7edo scale on C.]]
-Equal-heptatonic scales are used in non-western music in African cultures as well as an integral part of early Chinese music<ref>Robotham, Donald Keith and Gerhard Kubik. [https://www.britannica.com/art/African-music ''African music'', Encyclopedia Britannica.]</ref>. Also Georgian music seems to be based on near-equal 7-step scales. It has been speculated in "Indian music:history and structure", that the Indian three-sruti interval of 165 cents is close enough to be mistaken for 171 cents. (or 1.71 semitones).
+[[Equiheptatonic]] scales close to 7edo are used in non-western music in some [[African]] cultures<ref>[https://www.britannica.com/art/African-music ''African music'', Encyclopedia Britannica.]</ref> as well as an integral part of early [[Chinese]] music<ref>Robotham, Donald Keith and Gerhard Kubik.</ref>. Also [[Georgian]] music seems to be based on near-equal 7-step scales. It has been speculated in "Indian music:history and structure", that the [[Indian]] three-sruti interval of 165 cents is close enough to be mistaken for 171 cents. (or 1.71 semitones), one step of 7edo.
 edo can be thought of as the result of stacking seven [[11/9]]'s on top of each other, and then tempering to remove the comma {{monzo| -2 -14 0 0 7 }}. As a temperament, [[William Lynch]] gives it the name "Neutron[7]" just as the whole tone scale of [[12edo]] is known as "Hexe[6]".