“Within fields of sound, our ear allows us to perceive images. These images are acceptable if they relate to our intelligence. They shift in time and are transformed. These successi­ve mutations are points on the axis of an arbitrary system. Our memory enables us to focus on them as they constantly change. In this way it marks the boundaries of the depth of focus of our perception.

Several images can be superimposed, as can several time systems. Our hearing allows us to place our attention at various depths simultaneously. This attention is guided by our will and fined down by our cultural filters. These listening choices belong to us and are the reflection of our imagina­tion.”

Profondeurs de Champ was commissio­ned by the French government. Harry Sparnaay first performed it on 8 September 1984 at the Stedelij Museum in Amsterdam and the Asko Ensemble conducted by Arturo Tamayo. The “Paris” version was first performed at the Pompidou Center in November 1985 by the Ensemble InterContemporain conducted by Ronald Zollman.