Well the in the Independent Baptist "Religon" Heavy Metal, and every other type of music is frowned on. We take the verse (and when I say we I mean them) "Come out from among them and be ye seperate..." and the idea that when you become a Christian that you should become a new creatcer and old things should pass away. The churchs U have belonged to have nipcked on music, long hair somking drinking, and watching TV as a lot of things that would make us seperate.
Personaly, however I feel that God has to convict a person of whatever "sin" is in question, and not base what you change in your life based on just what you hear from the pulpit. You have a personal relationship with God, and by reading his word and talking with him he will show you how he wants you to live your life.
I look back at some of the messages and ideas I had as a young preacher boy, and think to myself what was I doing. I would preach that people whould need to worry more about the outwardly things we do, then preach about the matters of the heart of the beleiver. I realize now that to have a "Closer Walk with Jesus" is more inprotaint then what type of music you like.