This duo’s grab-bag approach continues on their third studio album, Cloud 909, an 18-track marathon with more good than bad but little of substance. With its constant toggling between conscious, swag, and street lyricism amid its peaceful, sun-warmed beats, it splits the difference between early Kendrick and current Drake, and loses much of the charisma somewhere in the middle. Oktane and Price are strong rappers, with flexible flows and a gift for beat selection. Their music is polished and professional. But, if you have ten hours to burn, you can listen to the new record ten times over and come out knowing very little about either one of them.