Define "dark and brooding". If a written piece of music speaks about life, philosophy, metaphors and other concepts which are encompassed within ethereality and the higher states of knowledge... I'll pick that for soul food over soul-numbing money/drugs/sex/consumerism laden corporate shit ANY DAY.
Now, if you're looking for neutrality... and thus pure music for its own sake; Opeth has this too. [link]
But if you're going to reply to me whining about how you can't decipher any lyrics short of whatever is sung in a toneless metallicesque californian accent, then just don't bother.