Ed8/3: Difference between revisions

BudjarnLambeth (talk | contribs)
Improved layout slightly
Rework the trivial statements into something more informative; improve linking and style
Line 1: Line 1:
'''Ed8/3''' means division of [[8/3]] into n equal parts.
The '''equal division of 8/3''' ('''ed8/3''') is a [[tuning]] obtained by dividing the [[8/3|Pythagorean perfect eleventh (8/3)]] in a certain number of [[equal]] steps.  


== Equivalence ==
== Equivalence ==


Division of 8/3 into equal parts can be conceived of as to directly use this interval as an equivalence, or not. The question of [[equivalence]] has not even been posed yet. Many, though not all, of these scales have a pseudo (false) [[octave]], with various degrees of accuracy. The eleventh is also the highest equivalence where composers do not need to go beyond the pseudo (false) octave just to have a reasonably complete chordal harmony. However, the utility of 8:3 or another eleventh as a base is complicated by the fact that 8:3 is the avoid note in a major modality although this matters less in Mixolydian than it does in Ionian given that the former is the natural dominant scale anyway.
Division of 8/3 into equal parts does not necessarily imply directly using this interval as an [[equivalence]]. The question of equivalence has not even been posed yet. Many, though not all, of these scales have a false [[octave]], with various degrees of accuracy. The eleventh is also the highest equivalence where composers do not need to go beyond the false octave just to have a reasonably complete chordal harmony. However, the utility of 8/3 or another eleventh as a base is complicated by the fact that 8/3 is the avoid note in a major modality although this matters less in Mixolydian than it does in Ionian given that the former is the natural dominant scale anyway.


Incidentally, one way to treat 8/3 as an equivalence is the use of the 3:4:5:6:(8) chord as the fundamental complete sonority in a very similar way to the 4:5:6:(8) chord in [[meantone]].  
Incidentally, one way to treat 8/3 as an equivalence is the use of the 3:4:5:6:(8) chord as the fundamental complete sonority in a very similar way to the 4:5:6:(8) chord in [[meantone]].  
Line 26: Line 26:
* Locrian and Pluperfect/Abundant Phrygian[10i]/Lydian and Perfect Ionian[11i]: Scala Francisci
* Locrian and Pluperfect/Abundant Phrygian[10i]/Lydian and Perfect Ionian[11i]: Scala Francisci
* Perfect Ionian through Pluperfect/Abundant Phrygian[9i]: Montréal
* Perfect Ionian through Pluperfect/Abundant Phrygian[9i]: Montréal
[[Category:Equal-step tuning]]
[[Category:Equal-step tuning]]
[[Category:Todo:cleanup]]
[[Category:Todo:cleanup]]
[[Category:Todo:improve layout]]
[[Category:Todo:improve layout]]
[[Category:Todo:improve readability]]
[[Category:Todo:improve readability]]