"new york-based designers marcelo ertorteguy and sara valente have conceived the ‘cyclo-phone’, a bike-powered music machine. by pedaling a stationary bicycle connected to the instrument, users create different rhythms and compositions by cycling at different speeds. the instrument consists of a rubber flap attached to a bicycle rim that slaps on 8 pvc pipes that are held together in a radial configuration by a plastic stock water tank. each pipe is cut at a different length to produce different tones. the installation was fabricated for summer streets 2012 presented by the new york city’s department of transportation in manhattan" (via cyclo-phone by marcelo ertorteguy and sara valente).