Maria Teresa had several famous performances, perhaps the most famous on July 16, 1739, when famous French traveler Charles de Brosses was very impressed by her music. He was not the only one; the Count Gerolamo Riccati wrote several letters praising her compositions and musical talent. Another very famous performance was her theatrical debut, the Cantata Pastorale "Il Ristoro d'Arcadia", in Milan at the Teatro Regio Ducale in 1747 where she dedicated her piece to various rulers of the surrounding areas of Saxony and Austria.