ROBERT GLASPER EXPERIMENT Throw any preconceived genre definitions out the window when you’re talking about Robert Glasper. The 33-year-old jazz pianist teeters on a line between jazz and hip-hop that isn’t often toyed with as he pushes the boundaries of the traditional as far as they can go. His latest album, Black Radio, welcomes guests ranging from Erykah Badu and Bilal to Lupe Fiasco and Lalah Hathaway, though he’s just as likely to throw a Nirvana cover into his live set. — Jeff Hahne

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