Installation with 32 tuned pipes, 32 loudspeakers and 4-channel audio Presentations 1999: within the solo exhibition Works with Sound, Stadtgalerie Saarbrücken, Germany. 1987: Lichthof, TU Berlin Hauptgebäude, West Berlin. 1987: within the exhibition Klanginstallationen, Gesellschaft für Aktuelle Kunst (GAK), Weserburg, Bremen. 1985: Musique à Tangente, Galerie Tangente, Montréal.

Installation with 12 ceiling-mounted loudspeakers, 2 wooden resonators at floor level and one-channel audio Presentations 1984: Galerie Tangente within Musique à Tangente, Montréal. 1984: Foyer of the Hotel Méridien, Montréal (over the foyer loudspeaker system).