This article is about the currently active orchestra of this name. For the orchestra active from 1906-1918, see Toronto Symphony Orchestra (Welsman). Toronto Symphony Orchestra Victor Feldbrill conducting the Toronto Symphony Orchestra at Ontario Place in 1975. Background information Birth name New Symphony Orchestra Also known as TSO Origin Toronto, Ontario, Canada Genres Classical Occupations Symphony Orchestra Years active 1922–present Associated acts Toronto Symphony Youth Orchestra Website www.tso.ca Members Music Director Peter Oundjian Chair of Board of Directors Ana Lopes The Toronto Symphony Orchestra logo The Toronto Symphony Orchestra (TSO) is a Canadian orchestra based in Toronto, Ontario.