Written by downtown NYC composer Phil Kline, Unsilent Night is an outdoor ambient music piece for an infinite number of boomboxes. When performed in the confines of a city, Unsilent Night reverberates off the buildings and streets, resulting in a drifting cloud of ethereal undulating sound. In effect, performers become a single element in a two-block-long stereo system. The Village Voice describes Unsilent Night as "a marvelously fluid, traveling spatial sound sculpture that disintegrates and reforms at nearly every stop light." Time Out calls the event "an electro-happening" and depicts the music as "a winter wonderland of shimmering sleigh bells, chimes and grand chorales."

Since its debut in 1992, Unsilent Night has become a cult holiday tradition in NY and around the world, drawing crowds of up to 1,500 participants. This year will see repeat presentations in San Francisco, Philadelphia, San Diego, Vancouver BC, Middlesbrough (England) and Sydney, Australia, as well as the first ever performances in Los Angeles, Santa Barbara, Baltimore, Charleston, Rochester, Milledgeville (Georgia), and Banff (Alberta, Canada). In February 2006, a new version of Unsilent Night was presented at the Winter Olympics in Turin, Italy, as part of a sound art festival in the Alps.