Norrköping City Symphony was performed by hundreds of local citizens, 12 loudspeakers, 20 motion sensor loudspeakers, 40 mobile loudspeakers carried by the citizens, 15 students from the Norrköping School of Music Production, Lars Stjernkvist (Chairman of City Council), church bells of Norrköping City Hall and music played simultaneously on local radio P4 Östergötland. The event was a part of Unesco Creative Cities and Music Tech Fest Stockholm.