68edo: Difference between revisions

Xenwolf (talk | contribs)
recat, some cleanup
Line 1: Line 1:
The '''68 equal temperament''', often abbreviated '''68-tET''', '''68-EDO''', or '''68-ET''', is the scale derived by dividing the octave into 68 equally-sized steps. Each step represents a frequency ratio of 17.65 cents; this is half of the step size of [[34edo|34edo]], which does well in the 5-limit but not so well in the 7-limit, and one quarter the size of [[17edo|17edo]], which does well in the [[3-limit|3-limit]], but not so well in the [[5-limit|5-limit]]. The luck continues: 68 is a strong [[7-limit|7-limit]] system, but does not do as well for in [[11-limit|11-limit]]; though it's certainly usable for that purpose, it does not represent the 11-limit diamond [[consistent|consistent]]ly.
The '''68 equal temperament''', often abbreviated '''68-tET''', '''68-EDO''', or '''68-ET''', is the scale derived by dividing the octave into 68 equally-sized steps. Each step represents a frequency ratio of 17.65 cents; this is half of the step size of [[34edo]], which does well in the 5-limit but not so well in the 7-limit, and one quarter the size of [[17edo]], which does well in the [[3-limit]], but not so well in the [[5-limit]]. The luck continues: 68 is a strong [[7-limit]] system, but does not do as well for in [[11-limit]]; though it's certainly usable for that purpose, it does not represent the 11-limit diamond [[consistent]]ly.


As a 7-limit system it tempers out 2048/2025, 245/243, 4000/3969, 15625/15552, 3136/3125, 6144/6125 and 2401/2400. It supports [[octacot]], [[shrutar]], [[hemiwuerschmidt]], [[hemikleismic]], [[clyde]] and [[neptune]] temperaments, and supplies the optimal patent val for 11-limit [[hemikleismic]]. It is a sharp-tending system, with the third, fifth and seventh harmonics all sharp.
As a 7-limit system it tempers out 2048/2025, 245/243, 4000/3969, 15625/15552, 3136/3125, 6144/6125 and 2401/2400. It supports [[octacot]], [[shrutar]], [[hemiwürschmidt]], [[hemikleismic]], [[clyde]] and [[neptune]] temperaments, and supplies the [[optimal patent val]] for 11-limit [[hemikleismic]]. It is a sharp-tending system, with the third, fifth and seventh harmonics all sharp.


=Diatonic scales=
=Diatonic scales=
Line 12: Line 12:


Inverse: 8 8 14 8 8 8 14
Inverse: 8 8 14 8 8 8 14
[[Category:clyde]]
 
[[Category:Clyde]]
[[Category:Equal divisions of the octave]]
[[Category:Equal divisions of the octave]]
[[Category:hemikleismic]]
[[Category:Hemikleismic]]
[[Category:hemiwuerschmidt]]
[[Category:Hemiwürschmidt]]
[[Category:neptune]]
[[Category:Neptune]]
[[Category:octacot]]
[[Category:Octacot]]
[[Category:Quartismic]]
[[Category:Quartismic]]
[[Category:shrutar]]
[[Category:Shrutar]]