Formed in 1967, the Quatuor de jazz libre du Québec (QJLQ) was a force to be reckoned with in post-Quiet Revolution Quebec. Between 1967 and 1970, the QJLQ shared the stage with artists such as Louise Forestier, Robert Charlebois and l'Infonie. It promoted improvised music as a means of bringing about real social and cultural changes in Quebec. In 1970, the QJLQ established a colonie artistique in Val-David. It also acquired land - the Petit Québec Libre - in an effort to offer artists and political activists a communal place to exchange ideas. From 1970 onward, Quebec's first free jazz ensemble turned to contemporary avant-garde music for further inspiration. As the decade unfolded, the QJLQ became more radical both musically and politically. Tenzier's new release constitutes a rare opportunity to hear the quartet at its most potent.This session was recorded at Radio-Canada's Studio 13 on 13 May, 1973. Jean Préfontaine : tenor saxophone and flute. Yves Charbonneau : pocket trumpet. Jean-Guy Poirier : drums. Yves Bouliane : upright bass.