Non-Mainstream Music

Good when you get it on vinyl for a record-player (I'm listening to them right now).

Aw sweet man-made horrors beyond my comprehension

Does SUNN 0)) count as unconventional?

Not necessarily a "banger" in the traditional sense, but when you're playing a symphony on hundreds of factory sirens, fog horns, train whistles, the entire Soviet Caspian flotilla, and multiple full choirs, nothing is really "traditional" in any sense of the term.