In just over a year, prolific rhymer Blu has released three projects’ worth of albums with three considerably different producers. The MC’s latest, Johnson&Jonson, isn’t superior to his recent albums with Ta’Raach or Exile, although this quality collaboration with Mainframe represents yet another notch in Blu’s rapidly expanding stylistic range. Mainframe’s vibrant, loop-based beats here evoke some of Blu’s punchiest raps yet on the swagger-saturated songs “Up All Night” and “Bout It Bout It.” But J&J is about more than grade-A shit-talking. We also see Blu resurrect his reminiscent side, only this time with funky tracks like “Mama Told Me,” on which he recalls the more mischievous side of his youth in L.A. Once again, Blu delivers through and through.