Musical instuments   Bass Marimbas 2002 - 2003 Two Bass Marimbas, one for theatre, one for the kids.   The Three Sirens 1992 - 2005 Aglaopheme, a selflearning slide-guitar-robot and her band     Lichtmangel 2002 This optoacoustic instruments was designed for a theater piece by Flann O'Brien. Residenztheater Munich.