Anchored by his trademark sonic curiosity, Prince’s 2015 album is a glorious free jam of styles. The master’s lascivious R&B lies at its core, but there’s an EDM flirtation that’s endlessly intriguing. Rita Ora assists on the fuzzed-up, defiant “Ain’t About 2 Stop,” “Mr. Nelson” takes it cues from several international dance floors, while “1000 X’s and O’s” (a song originally intended for Rosie Gaines) is an effortless slow jam fit to grind with Prince’s very best.