On Wednesday, December 21, the Chandler Travis Philharmonic hosts the 12th Annual Boston Christmas Cavalcade for the Homeless at the Once Ballroom (aka Cuisine en Locale, at 156 Highland Ave., Somerville; 617 285-0167), featuring the Stompers, the Boston Typewriter Orchestra, Jennifer Kimball, the Second Line Social Aid & Pleasure Society Brass Band, Amy Fairchild & Carla Ryder, Ramona Silver, the Weisstronauts, Erin Harpe, Shaun Wortis, Merrie Amsterburg, Rose Polenzani, the Darlings, Jen D’Angora, Alastair Moock, the Classic Ruins, Bird Mancini, the Revolutionary Snake Ensemble, Mike Gent, the Boogaloo Swamis, Kimon Kirk, the Philharmonic Trombone Shout Band, the House of Bangalore Holiday Band, the Ding Donnelly and Danny Devereaux Show, the Athol Thingerth, and more TBA.

The show starts at 7:00 p.m. The suggested donation for tickets is $20 in advance, and $25 at the door.