Charpentier was Lully and Lalandes' equal for the exceptional quality of his music. For the Duchess of Guise he created works of infinite beauty, which Louis XIV particularly admired, including the Idylle en musique Les Arts Florissans (1685). Gaétan Jarry and his young musicians give back living vitality to this allegory of the artistic golden age of the "greatest king of the world" who had just settled his court in Versailles, With himself in the guise of Apollo or as the Sun King. Founded in 2007, the Marguerite Louise ensemble is made up of passionate musicians from a variety of backgrounds, from leading schools (CNSM in Paris, CNSM in Lyon, Conservatoire in Amsterdam, Center for Baroque Music in Versailles, Schola Cantorum in Basel) or already performing with prestigious ensembles (Les Arts Florissants, the Elements, the Spiritual Concert, the Concert d'Astrée). All seek to revive these little motets very intimate, quite symptomatic of the piety of the Sun King and his court at the end of the "Grand Siècle".