Unsilent Night is an outdoor soundwalk and global music event created by composer Phil Kline. Since its debut in 1992, this one-of-a-kind holiday tradition has transformed city streets around the world into shimmering, mobile sound sculptures. Participants each play one of four interlocking tracks on their phones or speakers, pressing play together and walking a shared route through town — turning the audience into the performers and the city into a surround-sound experience heard differently from every step and perspective.