From the Studio Drift YouTube web page:
In their work Studio Drift often contemplates the concept of freedom. “Franchise Freedom” visualizes the connection between a group and the individual by mimicking a swarm of starlings. As dusk fell over Black Rock City, 600 luminous drones rose into a hypnotic display of technological choreography, accompanied by the poignant keys of Joep Beving. The drones were guided by a specially made algorithm that simultaneously allows both individual choice and movement as a group. The innovative technology made it possible to create a 3d image in the sky that could be viewed from multiple angles.