Join in the fun

FOX AND BRANCH When fiddler/guitarist Dave Fox and guitarist/banjoist/vocalist Will Branch made families the focus of their traditional folk music, they had their priorities straight. Number one — fun. You’ll be invited to sing, dance, and maybe even hop onstage to try a washboard. Aug. 18, 10:30 a.m. $10. Club Passim, 47 Palmer St., Cambridge. 617-492-7679, www.passim.org Milva DiDomizio