On his latest project, Chemical Warfare, producer/MC The Alchemist is rolling with bigger names than ever, but working with platinum acts like Eminem and Three Six Mafia doesn’t spark anything especially inspiring. It’s only when ALC shakes up the concepts and combinations of guests that the tracks become really worthwhile. A ’70s soul-inspired cut with Maxwell and Twista (“Smile”) is a smoothed-out sure shot where everyone shines. Meanwhile, the psych rock-inspired “Therapy,” with vocal assists from Evidence Blu, Kid Cudi, and Talib Kweli, is one of the better LA-meets-NYC posse cuts of recent memory. The heaters are here—you just have to look for ’em.