dance of sunlight fat spots

My city is known for the strong chilly wind coming from East Europe. We call it Bora. Generally when it blows all clouds are wiped away and a shining sun stands in contrasts with the cold air. I was in my room and the trees outside where moving in the wind. The sunlight passing through the window generated these dancing spots on the wall. I immediately grabbed them with a camera and make them sound with my system MONDRIAN. Video 1920x1080 Duration 20s Made through a unique and unrepeatable workflow.