hexachord.
(Of thelat.)(hexachordus, of six-string).
1. m. Mús. Scale to chant composed of the first six notes usual, invented in the eleventh century by Guido Aretino.
2. m. Mús. Sixth in the musical scale interval.
1. m. Mús. Interval that consists of four tones and a semitone.
1. m. Mús. Interval that consists of three tones and two semitones.
