One of Mozart’s last serenades, the "Gran Partita" may be best known today for its memorable appearance in the play and movie Amadeus, where composer Antonio Salieri—overwhelmed by the power of the music—famously declares that, "It seemed to me that I was hearing the voice of God." Scored for eight woodwinds, four horns, and double bass, the piece dates to Mozart’s first years in Vienna, following the series of serenades written for a variety of celebratory occasions during the young composer’s time in Salzburg. Introducing the "Gran Partita," Daniel Barenboim and the Boulez Ensemble will present the highly anticipated world premiere of a new work by Jörg Widmann.