Pete Rock is the man who J Dilla told, “I wanted to be like you.” Kanye once called himself the “new Pete Rock.” But the original Pete Rock remains permanently vital. The evidence bangs in his latest opus, Petestrumentals 2, the sequel to the 2001 classic that helped define the hip-hop instrumental record. It marks the legend’s first album on Mello Music Group, a fitting union between the author of the boom-bap blueprint and the label that’s expanded upon his legacy.