Metal - fat, spotty, probably virgins, often in their teenage years, wearing camouflaged combat trousers.

Indie - thin, ridiculous hair, probably virgins - but some unrequited love going on, probably wearing cordrouy.

"Experimental" - middle aged (whatever age they are), uptight, have a partner, but who is probably long suffering.

GO! (i fall into "experimental" by the way. Probably the most accurate of the three).