Zoroastre (Zoroaster) is an opera by Jean-Philippe Rameau, first performed on 5 December 1749 by the Opéra in the first Salle du Palais-Royal in Paris. The libretto is by Louis de Cahusac. Zoroastre was the fourth of Rameau's tragédies en musique to be staged and the last to appear during the composer's own lifetime. Audiences gave the original version a lukewarm reception, so Rameau and his librettist thoroughly reworked the opera for a revival which took place at the Opéra on 19 January 1756. This time the work was a great success and this is the version generally heard today. Performance history Zoroastre'''s premiere in 1749 was not a success; despite the magnificence of the staging, it failed to compete with Mondonville's new opéra-ballet Le carnaval du Parnasse. Rameau and Cahusac decided to rework the opera completely before offering it to the public again in 1756. Acts 2,3 and 5 were heavily rewritten and there were several modifications to the plot. This time audiences took to the opera, although the critic Melchior Grimm was withering about Cahusac's libretto: "In Zoroastre it is day and night alternately; but as the poet...cannot count up to five he has got so muddled in his reckoning that he has been compelled to make it be day and night two or three times in each act, so that it might be day at the end of the play". Zoroastre was chosen to open the new Paris opera house on January 26, 1770, the old one having burned down in 1763. It was also translated into Italian by Casanova for a performance in Dresden in 1752, although some of Rameau's music was replaced by that of the ballet master Adam. Its first modern revival was in a concert version at the Schola Cantorum, Paris in 1903. The United States premiere of the opera was staged by Boston Baroque (then known as Banchetto Musicale) at Harvard University's Sanders Theater under conductor Martin Pearlman in 1983 with Jean-Claude Orliac in the title role and James Maddalena as Abramane. Libretto and musicZoroastre includes some important innovations: it was the first major French opera to dispense with an allegorical prologue and its subject matter is not drawn from the Classical mythology of Greece and Rome, as was usual, but from Persian religion. There was good reason for this. As Graham Sadler writes, the opera is "a thinly disguised portrayal of