diezeugmena

Noun

diezeugmenon (plural diezeugmena)

1. The last tetrachord, in the case where two tetrachords were placed separately from each other, but with only the interval of a tone between them.
   • In the middle range, place first at the extreme ends the vessels which give the note of the chromatic hyperbolaeon; next to them, those which give the chromatic diezeugmenon, a fourth below; third, the chromatic synhemmenon; fourth, the chromatic meson, a fourth below; fifth, the chromatic hypaton...1914, Vitruvius (translated by Morris Hicky Morgan), Ten Books on Architecture