‘The Music, lovely science, awakens the spirits and comforts people. There is nothing as sweet as hearing different voices intoned...

'[Improvise] free [suelto] counterpoint on a plainsong in the bass, as well as concerted [counterpoint], showing two voices on the...

'Having learned these species [of intervals] and the method, here is how we ought to use them. The boy should provide himself with a...