Since I've basically been listening to "Float On" all day (with the exception of the couple hours I spared for Dan's Arcade Fire/Wolf Parade bootleg, and Jordan's Flying Saucer Attack album [why vocals!? why!?]), I didn't have time to do very much real thinking on "moody hip-hop." Although I originally planned to pick out something like Notorious BIG's "Suicide," here's a track I like a lil more.
MF Grimm - "Tick, Tick" [f. MF Doom]. Reluctant, pissed off, belligerent, with fine rhymes and brilliant, brilliant, fast-and-slow tempo shifts. It's jazzy and dark, with both a high-concept mentalist form and a rough, from-the-gut delivery. When it come to currency, love is nonexistent / Foes magnified, Friends become so distanced. (from MF Doom's Operation Doomsday.)