With fat backing from Lifesavas producer Jumbo, former Watts resident Libretto brings irresistibly scruffy flow to Portland dub label BSI’s hip-hop imprint One Drop. On the East Coast-ish title tune, Lib rhymes of street struggle and “low times on the brain” over a guitar-plucking monster beat, while the flip’s “Alma Mater” harkens back to golden-age SoCal G-funk. Hot.