Ed5/4

Ed5/4 means Division of the Just Major Third (5/4) into n equal parts.

Division of the just major third into n equal parts

Division of the 5:4 into equal parts can be conceived of as to directly use this interval as an equivalence, or not. The question of equivalence is still in its infancy. The utility of 5:4 as a base though, is apparent by providing a novel consonance after 3, and being the basis for 5-limit harmony. Many, if not all, of these scales have a perceptually important pseudo (false) octave, with various degrees of accuracy.

5/4 is particularly narrow as far as equivalences go and it is difficult to fit consonant chords in it, so we might consider using 5/4² = 25/16 as the equivalence instead.

Individual pages for ED5/4s

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