Schafer is known for introducing the concept of soundscape, and for inventing the term schizophonia. His avant-garde, music theatre, opera and classical compositions, many using graphic notation, are for a very wide range of forces. They include the Patria cycle of music-theatre works, written over four decades. His books include The Tuning of the World (The Soundscape), On Canadian Music and The Thinking Ear: On Music Education.
Further information: Canadian Music Centre