The holiday season just isn't the same without music, and this holiday you can join in and be a part of the festive atmosphere by experiencing The Gaits - a High Line Soundwalk. Put on by Make Music New York, this unique event is scheduled for 5pm on December 21, and will see you and a group of like-minded folks gathering at the Southern end of the High Line, before trekking north on a unique musical walk. Using your smartphone, an event-specific, and a small portable speaker, you'll become an instrument yourself, creating a symphony of twinkling sounds, guitar chords, dulcimer strikes, splashes, horns, and applause, simply by walking — and so will everyone else walking with you, creating a one-of-a-kind communal holiday musical experience.