The strategy for recording and composing Air Raid was derived from sound rather than image. This produced some unusual juxtapositions between images found in the everyday: a lawnmower, the wrapping of fruit with tin foil, a cement mixer, record player, television, and among others, the eerie image of an air raid siren. A negative double of the image horizontally slides away every so often as if ruptured by the violence of the sound. The last image shows a butterfly opening and closing its wings as if it were tuning the only silent segment of the work.