The Karlsruhe media artist Jonas Denzel uses hands to make not only the castle, but also the audience resound. At his show "Hands on", hands knock, rub and clap on the castle façade. The sound that can be heard was created by tapping on parts of the castle such as windows, rain gutters and walls. 

The castle becomes a piano played by hands. In the end, the hand movements on the castle invite us to become part of the rousing rhythm! Distinguished audience, clap along to make the castle be heard!