Member of the Order of Canada
- Awarded on: April 20, 1989
- Invested on: April 24, 1990
She is an important figure in the history of Canadian music whose innovative and daring compositions explored new areas of contemporary music and were an inspiration to other experimental composers. Her compositions, prolific in number and known for their tonal colour, depth and economy of expression, encompass works written for stage, film, strings, small orchestra, voice and piano and have been performed throughout the world.