Distributional evenness: Difference between revisions
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{{Distinguish|Maximal evenness}} | |||
A scale is '''distributionally even''' ('''DE''') if it has [[maximum variety]] 2; that is, each [https://en.wikipedia.org/wiki/Generic_and_specific_intervals generic interval class] ("seconds", "thirds", and so on) contains no more than two [https://en.wikipedia.org/wiki/Generic_and_specific_intervals specific intervals]. | A scale is '''distributionally even''' ('''DE''') if it has [[maximum variety]] 2; that is, each [https://en.wikipedia.org/wiki/Generic_and_specific_intervals generic interval class] ("seconds", "thirds", and so on) contains no more than two [https://en.wikipedia.org/wiki/Generic_and_specific_intervals specific intervals]. | ||
Revision as of 02:50, 17 March 2023
- Not to be confused with Maximal evenness.
A scale is distributionally even (DE) if it has maximum variety 2; that is, each generic interval class ("seconds", "thirds", and so on) contains no more than two specific intervals.
In practice, such scales are often referred to as "MOS scales", but some consider this usage to be technically incorrect because a MOS as defined by Erv Wilson was to have exactly two specific intervals for each class other than multiples of the octave. When Wilson discovered MOS scales and found numerous examples, DE scales with period a fraction of an octave such as pajara, augmented, diminished, etc. were not among them.