The thing about marketing to those types of people, they will already have a name/brand. There's also a (now defunct) German band called Crematory - no other band/pr co/management co/merch co/label etc within the genre would encroach on a name which is already known in the industry - they will want their own unique brand/identity. Even if they did want the domain, how would you find them? - any startups would still be 'underground' and not easily found without some contacts at the ground roots level.