Musically speaking, RT’s Longboard is best known for its weekend cover bands and reggae music. But it also hosts the occasional up-and-coming band like the San Francisco-based, two-man, guitar- and drums-based combo The Ferocious Few. Appearing at the club on Aug. 26, as with many bands in this format, blues is the base. But the duo also has a strong folk influence and manic rock ’n’ roll edge that keep things from getting too close to the template. The Ferocious Few has been a regular in San Diego since its debut in 2007, even staging a rogue show outside the 2010 Comic-Con. This show at RT’s Longboard is the optimal spot to see them. Unlike that infamous set, here they won’t be competing with a train for sound levels. The Ferocious Few perform at 10 p.m. on Thursday, Aug. 26 at RT’s Longboard, 1466 Garnet Ave. 21 and up. No cover. www.the-ferocious-few.com