And yet you have Christian metal bands and in the more secular arena metal bands with Christians in them. The Devil Wears Prada is one such band.
From "John, What's Your Name Again"
I'm going to hope for you
I'm going to pray for you amongst the wreckless and the black
Salvation lies within
I'm going to hope for you
I'm going to pray for you amongst the wreckless and the black
My time is yours my friend
We all find ourselves so horribly weak
(Oh God)
Where's an offering
From "Assistant to the Regional Manager"
These writings are to those who have weeped
These writings are to those who haven't looked
Deeply enough into the correct resolution
Wrong, wrong again but stronger now
We can face this
FIght life with life
All glory to the One in existence
Bring upon your name, your grace, your every thing
From "Dogs Can Grow Beards All Over"
Lawlessness stains black on white washed tombs
We're too strong to compromise
Don't be ashamed of your faith
Dear Lord, deliver me
From hypocrisy and surcease.
Michie is right that it's the message that matters. A musical style isn't more or less appropriate for Christians. (For worhip in church, yes, that's different). I can take any music style and find examples of content that is focused on serving our flesh.
My wife works at a local venue that books national recording acts from many genres, rock, country, pop, oldies, rap, etc. Security's favorite genre of show to work is the metal shows. They have fewer problems there than most other genres with drunks and arguments and so forth. They say fans of metal are there to listen to the music and they look out for each other.