Accordions ain’t just for your eccentric Romanian uncle—it seems like everybody from the Decembrists to Styx have picked up the squeezebox and are letting loose. As it has for so many years, the Cotati Accordion Festival proves the wide appeal of the bellow-driven folk instrument with joyful enthusiasm and a diverse lineup. The all-female Polkanomics mix up traditional polkas with pop rock hits of the ’50s and ’60s. Ramon Trujillo leads a six-part mariachi band with traditional tunes from Mexico. Gator Beat perform uptempo bayou beats with their zydeco jams. San Francisco–based Gaucho, known to fill hip San Francisco bars, rock a unique blend of klezmer, swing and so-called Gypsy jazz. Tango, Italian folk classics and a mysterious fellow named the Great Morgoni all squeeze and push them keys Saturday–Sunday, Aug. 22–23, at La Plaza Park. Old Redwood Highway, Cotati. 9:30am–8pm. $15–$25. 707.664.0444.Dan Hirsch
.Aug. 22-23: Cotati Accordion Festival at La Plaza Park
