Mark Tetreault

Principal Tuba

Mark Tetreault

A Michigan native, Mark Tetreault studied with Wes Jacobs of the Detroit Symphony Orchestra, and then continued his work at the New England Conservatory of Music in Boston with Thompson Hanks. While in Boston, Mark was an active freelance performer, playing with the New Hampshire Philharmonic, Portland Symphony Orchestra, Boston Civic Symphony, Cantabrigia Brass Quintet, the Fellowship Orchestra of the Berkshire Music Festival at Tanglewood, and the Spoleto Festival Orchestra. After graduation, Mr. Tetreault joined the Jacksonville Symphony Orchestra in Florida, where he worked until joining the Toronto Symphony Orchestra in 1986.

Mark was a founding delegate of the Regional Orchestra Players Association and has served as a Director and later as Secretary of the Toronto Musicians' Association, AFM Local 149. He was also the Director of Symphonic Services for the Canadian Federation of Musicians for 10 years.

Mark has been an instructor at the University of Toronto’s Faculty of Music since 1987. He is married to violinist Leslie Dawn Knowles, who is the fiddler in the Ontario-based band BentTree Bluegrass, as well as being a long-tenured member of the Toronto Symphony Orchestra’s first violin section. Together, they have a large family of beautiful, bright, and talented children, grandchildren, and cuddly cats.

Current as of April 2018

Give to the TSO

The Toronto Symphony Orchestra is a charitable organization that relies on the support of its vibrant community to deliver outstanding programming and music education.

Donate Today


Subscribers get the best seats at the best prices, plus an array of exciting perks! Stay tuned for details on our momentous 100th season in 2021/22!

Email Club

Get insider access to Toronto Symphony Orchestra news, ticket offers, community programs, and more.

Sign up for Email Club
Live Chat Button