in Music, a compound consonance in a triple ratio, as 3:9. This interval says Martianus Capella consists of 9 tones and a semitone; 19 semitones, and 38 dieses. It is a symphony made when the voice proceeds from the first to the twelfth found.

DIAPASON Diateffaron, in Music, a compound concord founded on the proportion of 8 to 3. To this interval Martianus Capella allows 8 tones and a semitone; 17 semitones, and 34 dieses. This is when the voice proceeds from its first to its eleventh found. The moderns would rather call it the eleventh.