A Dictionary of Music and Musicians/Diatessaron
DIATESSARON was the ancient Greek name for the consonance of the 4th—δια τεσσάρων χορδων συμφωνία.
From volume 1 of the work.
DIATESSARON was the ancient Greek name for the consonance of the 4th—δια τεσσάρων χορδων συμφωνία.