La Naissance d'Osiris opera-ballet by Rameau to a libretto by Louis de Cahusac Fontainebleau 12 October 1754 written to celebrate the birth of the Duc de Berry who became Louis XVI.DRAMATIS PERSONÆPamilie (Soprano)Un Berger (Countertenor Haute-contre)Le Grand Prêtre de Jupiter (Bass-baritone)Jupiter (Bass-baritone)L’AmourLes Gr cesBergers Bergères Prêtres PeuplesORCHESTRAMusettes2 Flutes2 OboesBassoonStringsBasso continuoDuration: circa 52 minutes