Tetrachord beginning a whole tone above Mese in the P.I.S. [Perfect Immutable System]
The name of one of the intermediately-pitched tetrachords in the Greater Pefect System of ancient Greek music-theory.
The name describes the fact that this tetrachord is disjunct from the next one below it -- that is, the lowest note of this tetrachord (paramese) is separated by a tone from the highest note (mese of the next tetrachord (meson) below it. This is in contrast to the tetrachord synemmenon, which is not separated from tetrachord meson.
_ / o / tetrachord diezeugmenon o \ o \_ o tone of disjunction <_ / o MESE / tetrachord meson o \ o \_ o
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