Dust off your tape player and join/start an Unsilent Night event in your town. From creator Phil Kline:

Every year since 1992 I’ve presented UNSILENT NIGHT, an outdoor ambient music piece for an infinite number of boomboxes. It’s like a Christmas caroling party except that we don’t sing, but rather carry the music, each of us playing a separate track that is a “voice” in the piece. In effect, we become a city-block-long sound system!

Join us and bring a boombox, or anything that will blast a cassette, CD or Mp3. (Cassettes sound the coolest, but we realize cassette players are getting scarce now.) The more tracks we play, the bigger and more amazing the sound is. In recent years, UNSILENT NIGHTs in New York and San Francisco have attracted crowds of over a thousand people, with hundreds of boomboxes… it’s spectacular. If you’d like to participate, please e-mail the contact listed for your city for instructions. If you’d like to participate but don’t have a boombox or a music player with speakers, you can just show up and join the parade. Everyone is an important part of the procession. Help us make a BIG (and joyful) noise. This is always a free event and all ages are welcome.

Dates vary depending on location; learn more here.

Here are photos from previous year’s events around the world: