Marcellvs L. is a renowned video & sound-artist from Brazil, living in Berlin. His particular and radical production attracts attention by the intensity with which it associates philosophical concepts to electronic images and sounds. His work places itself in a zone of undiscernibility, which turns it inapprehensible by this or that audiovisual genre creating its own discursive universe. "KLAVIERWELLEN" (Piano Waves) was recorded on November 4th, 2010 in the lagoons of Venice with a grand piano in a upside down position being transported on a small boat. Two contact and two omnidirectional microphones were positioned on the soundboard of the grand piano to record the resonances of the strings, waves, motor, boats... the sounds of the environment of the lagoons filtered by the piano's acoustic properties.