Rolf Julius (1939-2011) entangled the world between sound and image in his art like no other. Miki Yui, Ralf Schreiber, Mattia Bonafini, Jens Carstensen, Christoph Ogiermann and Bohdan Medvedenko go in search of traces. For the Long Night of Culture, the artists will perform music on the "World of Quiet Sounds" every hour from 5 pm