Watch Free Online HD Moviesjoy. Under the baton of its founder François-Xavier Roth, the Les Siècles orchestra performs a program entirely devoted to Igor Stravinsky with The Firebird, Petrushka, and The Rite of Spring. For this concert at the Théâtre des Champs-Élysées, the musicians play on period instruments that reproduce as faithfully as possible the original sound of these three great ballets.