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
Morgen und Abend Morgen und Abend Morgen und Abend (German: "Morning and Evening") is an opera by Georg Friedrich Haas to a libretto by the Norwegian writer Jon Fosse. It is based on Fosse's 2000 novel "Morgon og kveld". The opera was jointly commissioned by the Royal Opera House, London, and the Deutsche Oper Berlin. It was premiered on the main stage of the Royal Opera House on 13 November 2015. The director of the production is Graham Vick. The composer has said "'Don't expect melodies, don't expect harmonies, just expect soundscapes". The vocal lines include microtones, including quarter-tones and sixth-tones. The opera,