duschenes toured europe as soloist with the ars antiqua ensemble, and emigrated to montreal, quebec, canada in september 1948, sponsored by his older brother, rolf. he quickly became active in the canadian musical scene, and in august 1949, staged and narrated the canadian première of stravinsky's histoire du soldat at mcgill university. he became principal flute of the cbc radio orchestra, and appeared as a soloist with the musica antica e nuova, the mcgill chamber orchestra and the pro musica society. he was a founding member of the baroque trio of montreal, which toured extensively, and made more than 30 recordings, including several with his friend and fellow flautist jean-pierre rampal. between 1970 and 1985, duschenes hosted ""initiation à la musique avec mario duschenes"" on télévision de radio-canada.