On his 2004 debut, Robert Glasper revealed some refined, traditional jazz-playing chops. But before long, the keyboardist was stretching his repertoire, including 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.