(BRAINY HIPHOP) Kanye West boasts of being a college dropout while winning Grammys, but he could learn much from production-wiz Prefuse 73 and potent poet Beans. After proving his instrumental prowess over three albums, Prefuse showed he could work with rappers and vocalists on his new gem, Surrounded by Silence. Beans is a rare MC who has the skills to back up outrageous boasts about his intellect and sexuality. (Chop Suey, 1325 E Madison St, 324-8000. 9 pm-2 am, $12 adv, 21+. ) DAVE SEGAL