チューリッヒ歌劇場
Following the "Anschluss" in 1938, Beer had to flee Austria and was granted a visa by the French government and he settled in a hotel room in Paris. He adapted instrumental works for orchestras and received a commission from a conductor at the Zürich Opera House for a work to be performed under the latter's name. He completed this work, including all orchestral and voice parts, in just three weeks, and without the benefit of a piano.