[1] In 1966, with Jean Papineau-Couture, Maryvonne Kendergi, Wilfrid Pelletier and Hugh Davidson, he co-founded the Société de musique contemporaine du Québec.

Among his notable pupils were Walter Boudreau, Marcelle Deschênes, Denis Gougeon, Richard Grégoire, Anne Lauber, Michel Longtin, Nicole Rodrigue, and Myke Roy.

Garant chose to dedicate himself to learning piano, where he was initially supervised by Sylvio Lacharité, one of the creators of the Symphony Orchestra of Sherbrooke.

[2] The first experience of teaching for Serge Garant likely traced back to the summer of 1951, when he was invited to participate in the camp musical Knowlton.

[3]: 51 Serge Garant participated in several radio programs as an expert, but his career as a host for CBC began in 1955 with Do-Mi-Sol and continued through Sur nos ondes (1957–1958) and Musique de notre siècle (1969–1985).