RE: Double Equal Temperament

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>page 274: "The primary selective system, which dominates the music of
the
>western world, is known as equal temperament and consists of a series
of 12
>semitones. It is possible to construct a tuning system which would
permit
>execution of other systems of intonation, such as mean temperament,
just
>intonation, and the inflections of special types of intonation. The
author has
>devised a system of tuning, "double equal temperament," which
successfully
>unifies these systems of intonation. (See Appendix C.)"

Double Equal Temperament, or 144-tET, does not provide for anything
resembling traditional "mean temperament" (presumably meaning meantone
temperament). The fifths of meantone temperament are typically around
696-698 cents, while 144-tET contains no intervals between 692 and 700
cents. 288-tET would be required to unify meantone with these other
systems of tuning.

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