3L 4s: Difference between revisions

Inthar (talk | contribs)
m Ultrasoft: pote tuning implies a temperament, so it's not allowed here (unless the temperament is allowed)
Flirora (talk | contribs)
replace introduction in tuning range section with Inthar's rewritten version (inadvertently removed when I was solving an edit conflict)
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== Tuning ranges ==
== Tuning ranges ==


Broadly speaking, the entire tuning range from minisoft to ultrasoft, which implies a generator flatter than 3\10 = 360¢, makes "neutral third" scales, where two generators can be interpreted a 3/2.
3\10 represents a dividing line between "neutral third scales" on the bottom (eg. 17edo neutral scale), and scales generated by submajor and major thirds at the top, with 10edo standing in between. the neutral third scales, after three more generators, make MOS [[7L 3s]] (dicotonic); the other scales make MOS [[3L 7s]] (sephiroid).
 
In dicotonic, the generators are all "neutral thirds," and two of them make an approximation of the "perfect fifth." Additionally, the L of the scale is somewhere around a "whole tone" and the s of the scale is somewhere around a "neutral tone".
 
In sephirotonic, the generators are major thirds (including some very flat ones), and two generators are definitely sharp of a perfect fifth. L ranges from a "supermajor second" to a "major third" and s is a "semitone" or smaller.  


=== Ultrasoft ===
=== Ultrasoft ===