Harold O'Neal grew up in Kansas City and attended the Paseo Academy of the Arts. Bobby Watson mentored him. So did Ahmad Alaadeen. He has toured the world and performed with Bono, and been interviewed on NPR and reviewed by The New York Times. But he still has love for his hometown. Two years ago, O'Neal spent New Year's Eve leading the overnight jam session at the Mutual Musicians Foundation, at 18th Street and Highland — because they asked him to. O'Neal's piano can ride the back of bebop or carry you on a classically tinged journey with intricacies that capture your attention and astound. And Saturday night, O'Neal makes a too-rare return to KC to perform with his trio at the Blue Room.