Remember how fun it was to sing carols, walking from house to house while tanked on cider and dizzy with the holiday lie known as Santa? Hold that thought. Now remember, years later, how you carried your first boombox around like a soul brother from the '70s, causing all sorts of suburban mayhem in the outdoor mall? Sure you do. Merge those two pleasures and you have Unsilent Night, a march through the Mission in which revelers carry boomboxes blasting the music of Phil Kline, a musician who has been leading carolers in cities across the globe for 15 years. Each person who brings a boombox (or whatever you have that resembles one) gets a separate track of Kline's ambient score, a shimmering, symphonic blast of bells and chimes. The result is a blocks-long sound sculpture (last year drew 1,000 people) that blows the doors off singing "Silent Night" in front of Cancun (although that would be something). Supported formats include MP3, CD, and cassette.
Sat., Dec. 22, 7 p.m., 2007