The Mp3 Experiment latest mission, over 4,000 people pressed play simultaneously and listened to an mp4 file filled with ridiculous instructions. Participants were instructed to pack a bag with LED lights, reflective vests, and glow sticks and to sit underneath the trees surrounding Prospect Park’s Long Meadow at sunset. The event was a surprise to everyone else in the park. This was all part of their twelfth annual Mp3 Experiment event. The year’s event marked the first time they used an .mp4 file, which included a colorful video component.
