Hum that tune again?

Singing loudly off key, eating s’mores and enjoying the company of friends and family — sign us up! That’s what’s on tap at the “Kumzitz-A-Palooza,” a free sing-along event hosted by the JCC of San Francisco. Get back in touch with childhood camp memories in a lively (and warmer) indoor atmosphere. Sing along with local song leaders including Marsha Attie, Jonathon Ferris and Ben Kramarz, and enjoy a night of nostalgia and family fun.
7 p.m. Saturday, Feb. 4 in Kanbar Hall, JCC of San Francisco, 3200 California St., S.F. Free. www.jccsf.org

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Heather Klein’s Inextinguishable Trio. Concert and CD release party for “Shifreles Portret: A Yiddish Art Song Project.” At JCCSF, 3200 California St., S.F. 5 p.m. $10. www.jccsf.org. Also Feb. 12 with Cantor Lauren Bandman and pianist Russell Norman. At Congregation Beth Am, 26790 Arastradero Road, Los Altos Hills. 7 p.m. Free. www.betham.org.

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Isle of Klezbos. Six-piece women’s klezmer band performs Yiddish swing, Jewish drinking songs, tango and more. At JCC East Bay, 1414 Walnut St., Berkeley. 8 p.m. $15-$20. Also Feb. 13 at 2 p.m. $10-$15. www.jcceastbay.org.