Sound of silence

Silent films can be noisy when the Alloy Orchestra is around. This Boston-based trio has scored more than 10 silent films including Josef von Sternberg's film "Underworld" (left, with Evelyn Brent and Clive Brook) winner of the first Oscar for best screenplay. The movie opens with an explosion in a bank and a crime kingpin staggering from the wreckage. The score by Terry Donahue, Ken Winokur, and Roger Miller ranges from "highly percussive music to rich and seductive melodies" with jazz, rock, Latin, and classical flavors, according to Winokur. The musicians also use found objects like hubcaps and truck springs, so look out when the bank explodes. 8 p.m. $20. Somerville Theatre, 55 Davis Sq., Somerville. 617-876-4275. crasharts.org