The BAC Professional Theatre Series presents “Winter Wonderettes,” a delightful musical set at a small business’s holiday party in 1968 that finds four female performers swinging into song when Santa doesn’t arrive with the employees’ bonus checks. Performances: Fri., Dec. 7 and 14, Sat., Dec. 8 and 15, 7:30 p.m.; Sun., Dec. 9 and 16, 2:30 p.m. The family-friendly show includes Sixties style tunes that range from “Santa Claus is Coming to Town” to “Jingle Bell Rock.” $22 ($20/BAC members).