“In ancient times, music (melody) was something other than mere pleasure of the ear: it was like an algebra of metaphysical abstractions, knowledge of which was given only to initiates, but by whose principles the masses were instinctively and unconsciously influenced.  This is what made music one of the most powerful instruments of moral education, as Confucius had said before Plato.”

(Danielou, Music and the Power of Sound - Rochester 1943)