I was a huge AC/DC fan way back when. I think Hells Bells could be a warning about evil as much as it could be a glorification of it. Anyway, not all heavy metal is what it appears to be.
a happy music makes you feel happy even if the singer speaks in a language you don't know.in the same manner a satanic music can influence your mind.
I hesitate to call TradtionInAction a Catholic website.