[Perndog]

Boethius did like music, he was the foremost authority on it in his time. And as the foremost authority, he said that a person of any class should only criticize and analyze music and never perform it because that was for the common folk. This is a ridiculous point of philosophy, and thus any other philosophy from him or his contemporaries may be sound but has the chance at being equally ridiculous, therefore you can't appeal to them as authorities.