The newest song which the singers have, they will be afraid that he may be praising, not new songs, but a new kind of song; and this ought not to be praised, or conceived to be the meaning of the poet; for any musical innovation is full of danger to the whole State, and ought to be prohibited. So Damon tells me, and I can quite believe him;-he says that when modes of music change, of the State always change with them.
– Plato, The Republic (Book IV), translator Benjamin Jowett
