Who wrote the original play that was inspired by a passion for a Vienne composer, and was the base for the opera Orpheus und Eurydike?
Orpheus und Eurydike:  The German text is based on a play by Oskar Kokoschka. Alma Mahler: Alma Maria Mahler Gropius Werfel (born Alma Margaretha Maria Schindler; 31 August 1879 – 11 December 1964) was a Viennese-born composer.
i don't know