Double Booked bridges Glasper’s parallel careers as the leader of an acclaimed jazz trio and a first-call sideman with hip-hop artists such as Mos Def, Q-Tip and The Roots. Moving nimbly from the acoustic Robert Glasper Trio to the hip-hop fusion Robert Glasper Experiment, the young keyboardist puts his versatility front and center. Special guests on the album include vocalist Bilal and rapper Mos Def. The Experiment’s five tracks differ in texture and depth from the Trio’s set, but the adventurousness of the performances and the gorgeous lyricism of Dave’s drumming fuse the album’s halves into a single musical statement that makes for a great jazz album.