L'Infonie was an avant-garde Québécois chamber ensemble under the direction of composers Walter Boudreau and Raôul Duguay.
It was intended both as a music group and a new approach to collective improvisation; Duguay published its manifesto in 1970.
The group released a number of albums on the avant-garde side of Quebec's progressive rock and jazz-rock scenes before dissolving in 1973.
[3] The ensemble was highly influential in the Montreal avant-garde music scene, and their albums became sought-out collectors items.
A restored version of the film was screened as part of the 2022 Festival du nouveau cinéma's Estival program of summer repertory screenings, before going into commercial release in 2023.