'Disjunct tetrachords' definitions:

Definition of 'Disjunct tetrachords'

From: GCIDE

Disjunct \Dis*junct"\ (d[i^]s*j[u^][ng]kt"), a. [L. disjunctus, p. p. of disjungere to disjoin. See Disjoin, and cf. Disjoint.]
1. Disjoined; separated. [R.] [1913 Webster]
2. (Zool.) Having the head, thorax, and abdomen separated by a deep constriction. [1913 Webster]
Disjunct tetrachords (Mus.), tetrachords so disposed to each other that the gravest note of the upper is one note higher than the acutest note of the other. [1913 Webster]