Ventilatheesizer is made by attaching light bulbs to the back of a ventilator, and replacing the fan blades with custom made blades. It produces sound when a player catches lights passing through ventilators as electric signals with a small
solar battery.
The pitch changes depending on the speed of the motor and the number of the blades.
The ventilators lined up in a back alley are synthesizers.

Created by Ei Wada + Nicos Orchest-Lab