(Usually I do it elsewhere, but from time to time I have to sing the praises of heavy metal. It's customary and the thing to do when you're into it. Just look at all the metal songs that are about metal. It's fucking crazy the level of meta in this musical style, let me tell you.)
Also posted at http://lauand.dreamwidth.org/121382.html, if you'd rather read it there or want to enter a discussion with comments.