On his 2004 debut, Robert Glasper revealed some refined, traditional jazz-playing chops. But before long, the keyboardist was stretching his repertoire, to include Radiohead numbers as well as Herbie Hancock tunes. And by the time of 2012's Black Radio, Glasper was a fusion visionary, putting his swing and his blues into R&B forms that featured prominent guest spots for Erykah Badu and Common. Glasper's mature aesthetic is a mixture that avoids condescension to either progressive jazz or contemporary pop forms; as a result, his textured, hooky sound is treasured by fans of multiple genres.