West Coast psychedelic rock is back—all reverb, flutes, and volume. Here's a major dose: From the Bay Area come the eight-piece Citay—think acoustic Led Zeppelin—and Howlin Rain, a woozy, bluesy spin-off of metal masters Comets on Fire. Hometown shredders Whalebones just need more hair and amyl nitrate to actually become Steppenwolf, and BC's Bison are as heavy as their namesake. This is easily the weekend's best show. (Sunset Tavern, 5433 Ballard Ave, 784-4880. 9 pm, $8, 21+.) UPDATE: Howlin Rain has canceled due to a family emergency. Citay, Whalebones, and Bison will still play.