Though best remembered for his internationally well-known opera, Mona Lisa, this German musician also made up melodramas, concertos, and chamber music. Also a conductor, he going the Berlin Condition Opera through the early 1920s. After participating in the School of Munich, he trained at the School of Heidelberg and proved helpful for an annual German music event known as the Bayreuth Celebration. He trained the renowned 20th-century conductor Wilhelm Furtwängler. His initial relationship, to his cousin Caroline Peill, finished in divorce. His second relationship was towards the well-known operatic soprano Barbara Kemp. An unlucky element of his legacy is normally that, while portion as President from the Prussian Academy from the Arts, he expelled Austrian composer Arnold Schoenberg and various other talented Jewish music artists from the business.