is an interactive ambient music album available from all browsers and mobile platforms. Each of the 12 tracks comprises four layers which can be mixed in a variety of ways. One is always a field recording from a park or forest in Warsaw, giving the album the feel of a virtual walk. The program also includes a map showing the parks giving names to individual tracks.
Authors of Metrofonia are sound director Łukasz Zięba and composer Michał Lazar.