Unsilent Night

This trippy musical performance piece, dreamed up by composer Phil Kline, is downtown’s decidedly arty, secular answer to Christmas caroling. Boom-box–toting participants gather under the Washington Square arch, where they are given a cassette or CD of one of four different atmospheric tracks; you can also download the Unsilent Night app and sync up via smartphone. Everyone then presses play at the same time and marches through the streets of New York together, blending their music and filling the air with a beautiful, echoing 45-minute piece. Those without speakers are invited to join in too.