What is some dark, serious non-metal music? I know a lot of hardcore fits this category, so don't mention that. Also, I'm thinking more along the lines of military/dark industrial like Laibach, or maybe dark abient. The music must be serious and not happy, and can't have lyrics about girls and relationships. I listen to primarily metal, because for the most part, the only music that meets these criteria are the metal bands I listen to. I know it would be good if I could expand my musical taste a little, though.