MOS-CHECK

[GENERIC-FUNCTION]


OM-JI
Function Reference
ARGUMENTS:
  - ratio Just Intonation interval [default = 4/3]
  - sobreposition sobreposition [default = 60]
  - range range of check [default = 2]
&optional
 
  - intervals    

Description:

This object creates a Moment of Symmetry without a octave equivalence. For make the octave equivalence use the object Octave-reduce, choose the range of the this MOS.

MOS is a Theory of the composer Erv Wilson.

Wilson coined the term (MOS) to describe those scales resulting from a chain of intervals that produce two (and not three) different-sized intervals.

These intervals are designated as the small (s) and large (L) intervals (FOR MAKE THIS USE THE OBJECT MOS-verification).

The relative number of s and L intervals in an MOS is co-prime, i.e., they share no common factors other than 1. Fractions are used to represent MOS scales: the numerator shows the size of the generator, and the denominator shows the number of notes in the scale.

The numerator and denominator of fractions representing MOS are also co-prime. Wilson organizes these fractions hierarchically on the Scale Tree. MOS are not only scales in their own right but also provide a framework or template for constructing a family of Secondary MOS scales. (in NARUSHIMA - Microtonality and the Tuning Systems of Erv Wilson-Routledge).



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