The third Study on Duality builds on the Wave–particle duality and the discovery of wave interference of light with the double-slit experiment. 
It is a sound-making process that acts over a sound material following a probability distribution that could be inferred from the measurement of a light interference pattern. Right now exists as a simulation of the light interference pattern, but it is meant to operate with real-time measurements of a double-slit experiment in a public space situation, where the presence of people would create for intrincated interference patterns.