An account of how a unique organization of young people, Les Jeunesses Musicales, is stimulating the appreciation and sharing in the study of the world's great music. The film describes how the movement spread after the war from Belgium to other countries of Europe and eventually to Canada. Photographed mainly at Lake Magog in rural Québec, picturesque setting of the music club's summer camp, the film conveys the complete dedication to music which is characteristic of its members. Appearing in concert excerpts in the film are a number of prominent musicians.