At night, five young men are busking in a city park. They are performing to an invisible audience. One plays a flute, two are on charangos, one has a guitar and the fifth is on a wind instrument. All are wearing matching black and gray fringed ponchos. There are trees, benches, streetlights, and buildings in the background. The music is amplified through speakers. A red and gray sign for mathematics is on the edge of the frame.