Having a recognizable voice will get you pretty far in hip-hop, which is partly about lyricism, but largely about persona and delivery. But Fillmore rapper San Quinn has it all: Odd bar flows, incredible command of the rhythm, a sense of humor, cloying personal anecdotes, and a raspy, almost childish voice. As a result, he's had an impressive eighteen-year-career in the Bay Area, supplemented by a sizable discography. His best records mix radio-ready hits with songs that could almost be characterized as "backpacker." Quinn makes a rare appearance at Berkeley's Shattuck Down Low (2284 Shattuck Ave.) this Fri., Sept. 4, alongside dancehall artist Rankin Scroo. The event caps off with sets by DJ Apollo, a founding member of the elite San Francisco crew Triple Threat DJs. 9 p.m. $15 ShattuckDownLow.comSpeaking of Rankin Scroo, he has been a presence on the Bay Area reggae, world music and hip-hop scene since the 1980s, when the duo of Rankin Scroo & Ginger electrified audiences with their jazzy style of dancehall music. In the last few years, Scroo has developed his own brand of urban reggae, blending hip-hop and roots music with the positive messages that have always been his stock in trade. Over the years, he's collaborated with E-40, Too $hort, and Money-B and produced Frankie Paul and Foundation at his Crucial Youth Studios in Oakland. Forever eclectic, Scroo's live gigs can jump between soca, lover's rock, R&B, and smoking roots reggae. Rankin Scroo opens for rapper San Quinn at Shattuck Down Low in Berkeley on Friday September 4th at 9:00 pm. $15.00 ShattuckDownLow.com.