By Patricia Harris and David Lyon, Globe Correspondents

Cambridge: Born as Club 47 in 1958, Club Passim (26 Church St., 617-492-5300, www.clubpassim.org) has been instrumental in the careers of innumerable folk musicians and singer-songwriters. Joan Baez sang there for free on Tuesday nights, and legend has it that Bob Dylan even performed between sets. Now a nonprofit sharing space with a vegetarian restaurant, Club Passim remains a top acoustic music venue.