Franz Mesmer summers he lived on a splendid estate and became a patron of the arts. In 1768, when court intrigue prevented the performance of "La finta semplice" (K. 51), for which the twelve-year-old Wolfgang Amadeus Mozart had composed 500 pages of music, Mesmer is said to have arranged a performance in his garden of Mozart's "Bastien und Bastienne" (K. 50), a one-act opera, though Mozart's biographer Nissen found no proof that this performance actually took place. Mozart later immortalized his former patron by including a comedic reference to Mesmer in his opera "Così fan tutte". In 1774, Mesmer produced an "artificial
The Giant (opera) music he devised for this was transcribed. The plot was elaborated from the children's games he played with his friends Egorka and Stenya, whose names are preserved in those of the characters. In the following year, the first act of the opera was given a premiere by the family at the estate of one of Prokofiev's uncles near Kaluga, with his aunt Tatiyana taking the title part, and the composer and his cousins taking the other leading roles. There is no record of further performances. The opera is apparently nearly entirely lost, although Nestyev quotes some musical extracts. A terrible