The video shows movement only. The houses and parked cars on the square thus become invisible. A breeze sets the tree leaves in motion every now and then. Two persons can be seen when they walk about the square but disappear when they stand still. The music has been created by the image using the ‘Soundmaps’ program (bram.org/sound/bow.php). Bass instruments are to the left of the image, sopranos are to the right.