I think that generally music should be a positive thing, I like Bob Marley's attitude: he said that his goal in life was to single handedly fight all the evil in the world with nothing but music, and when he went to a place he didn't go to play, he went to conquer.
“I understood that the will could not be improved before the mind had been enlightened.”
“It becomes a giant's task to compute the result when the effect of cross seas, wind at all angles and ever varying force, arched surfaces, head resistance, ratio of weight to area, and the intelligence of the guiding power crop up.”