He has also worked as an Assistant Conductor and vocal coach for the Metropolitan Opera, San Francisco Opera, Opera Company of Philadelphia, Vancouver Opera, and the Canadian Opera Company.
Outside of the US, Di Giuseppe made appearances with Ottawa Opera, the Canadian Opera Company, Vancouver Opera, and the Palacio de Bellas Artes in Mexico City.
Many college events feature singers from the Canadian Opera Company or musicians from the Taliskar Players as well as many talented Junior Fellows who share their music after supper or at events.
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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).
During the 1970s he worked as a guest conductor for productions with the Canadian Opera Company and the Edmonton Opera.
Pinto also worked as an accompanist and vocal coach with the Opera Australia and the Canadian Opera Company and was a frequent juror for the Enrico Caruso International Vocal Competition at Carnegie Hall.
Other performance credits include appearances at the Liceu (Isolde), Teatro Regio di Torino (Brünnhilde in Götterdämmerung), the San Francisco Opera (Brünnhilde in Die Walküre), Vienna State Opera (Isolde, Kostelnička), Deutsche Oper am Rhein, the Palacio de Bellas Artes, the Grand Théâtre de Genève, and the Canadian Opera Company.
Known across Canada, it has performed at Toronto's 2008 Olympic bid, TTC's 50th Anniversary, the Opening Ceremonies of the 1997 Special Olympics at the Sky Dome, and numerous cultural festivals around the world in addition to major production partnerships with professional companies like the Canadian Opera Company.
The Edmonton Opera is a professional Canadian opera company in Edmonton, Alberta, it performs in the Northern Alberta Jubilee Auditorium with its offices in the Winspear Centre in downtown Edmonton.