A group of seven wearing headphones, each connected to a single FM radio. Each is assigned a particular type of sound (i.e., "male voices" or "static" or "stringed instruments"). Slowly, we scan the FM radio dial from left to right. When one hears an example of their assigned sound, they imitate it using only their voice. The broadcast consists solely of the voices - and not the scanning of the radio. The radio listener is thereby treated, in real time, to the full FM radio spectrum in London (recreated by human voices) without having to touch the radio dial.