One A.M.

It's ironic that so many rappers pay lip service to the idea of "flow" -- especially their own -- while settling for a string of unrelated one-line putdowns. Might all this talk about fluidity be masking a sense of helplessness when it comes to rhythm and phrasing? Are flow-obsessed rappers just dried up? Even as I ask, Diverse wipes the smirk off my mouth. Since his sleepy 2001 debut, the "Move" EP, the Chicago-based rapper has made a relentless stream of cameo appearances on albums by Rjd2, Prefuse 73, Mos Def, and others. At some point, his style just came together, built around an easy mastery of micro timing, emphasis, and pitch. Diverse avoids insults, hype, and one-liners, but doesn't even need to say anything interesting to get your attention -- his gift lies in a rare kind of self-possessed delivery that could move you hard even without a beat. It's all in his flow.