Reale Existenz! (2007)
by André Bartetzki

This piece is based on short fragments of a lecture by the Austrian physicist Schrödinger. Erwin Schrödinger, one of the inventors of quantum physics, got very popular due to his thought experiment with a cat in a closed box in which he tried to illustrate the superposition of quantum states. Coupled to the state of a decaying atom (via a Geiger counter and a flask of acid) the cat is after a while both dead and still alive according to the superposition of the two possible states of that unstable atom. Only a collapse of the wave function of this system - caused by an observer or by the influence of the macroscopic environment - could the cat release of its indecisive state.

Biography
André Bartetzki was born in Berlin in 1962.
After a professional training and a few years of working as sound technician at the East-German state broadcast station and recording studios he studied sound engineering at the Hochschule für Musik "Hanns Eisler" in Berlin. During his studies, he began to set up a studio for electroacoustic music at the Hochschule, and between 1992 and 2002 he has lectured there and directed the studio. He has also given lectures and workshops in sound synthesis and algorithmic composition at the Technical University in Berlin, the Bauhaus-University Weimar, the Hochschule fuer Musik und Theater Rostock, the KlangArt festival in Osnabrück and at the Academy of Arts in Berlin. Between 1999 and 2004 he worked at the electroacoustic studio at the Musikhochschule "Franz Liszt" and at the Media Arts faculty of the Bauhaus-University in Weimar.
Besides teaching, he works frequently as a programmer, sound designer and sound engineer with ensembles, soloists and composers of new music.
His software CMask for algorithmic composition is being used by many composers around the world.
Since the mid-nineties he has been developing and performing his own musical and media art projects: tape music, performances with live-electronics, video and sound installations. His works were performed at international festivals for contemporary and electroacoustic music such as the Kryptonale Berlin, the ICMC 2002 Gothenburg, the BIMESP 2002 Sao Paulo, the SICMF 2003 and 2004 in Seoul, the ACMC 2005 in Brisbane. He became Finalist at the Bourges Festival and at the CIMESP Sao Paulo 2001. In 2004 he received a commission for the European Bell Festival by the ZKM Karlsruhe.
Between 1997 and 2004 he was a member of the board of the German Association for Electroacoustic Music (DEGEM), where he has worked as the editor of the DEGEM newsletter.

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