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Before coming to Boston in 1998, Sommerville was formerly principal horn of the Canadian Opera Company and Symphony Nova Scotia, acting principal horn of the Chamber Orchestra of Europe (1996–1998), associate principal horn of the Montreal Symphony (Orchestre Symphonique de Montréal) (1986–1991) and third horn of the Toronto Symphony Orchestra (1997).
Lélio Lambert Wilson (narrator), Orchestre Symphonique de Montréal, conducted by Charles Dutoit (Decca)