His works have been performed by many ensembles and orchestras in Canada and abroad, including the Asko Ensemble, the CBC Radio Orchestra, the Esprit Orchestra, the Montreal Symphony Orchestra, the New Music Concerts Ensemble, the Noordhollands Philharmonisch, the Seoul Philharmonic Orchestra, the Tokyo Symphony, and the Toronto Symphony Orchestra.
In 1986, Mr. Harman was a finalist in the CBC Radio National Competition for Young Composers. In 1990, he was the Grand Prize Winner in that same competition for his work "Iridescence", which was the selected work in the category for Composers under 30 years of age at the 1991 International Rostrum of Composers in Paris. At the International Rostrum of Composers in 2004, his "Concerto for Oboe and Strings" was chosen as a Recommended Work in the general category. As a result, both works have been broadcast in some 25 countries.
In 2001, Mr. Harman’s work "Uta" received an honourable mention at the Gaudeamus International Music Week. The same year, his work "Amerika" was awarded the Jules Léger Prize and was short listed for the Prix de Composition de la Fondation Prince Pierre de Monaco.
In 2007, Mr. Harman's work "Postludio a rovescio" - commissioned and premiered by the Nieuw Ensemble of Amsterdam - was awarded the Jules Leger Prize for New Chamber Music for that year.
Since 2005, Mr. Harman has served as Assistant Professor of Composition at the Schulich School of Music of McGill University in Montreal.