In 1937 at the Schlosstheater Schönbrunn, he led a private performance of Mozart's Cosi fan tutte where among the audience were Sigmund Freud, Stefan Zweig, Franz Werfel, Weingartner and Oskar Kokoschka.
While in America he also made his New York concert debut with the NBC Symphony Orchestra and conducted the premiere of Menotti's The Old Maid and the Thief in 1939.
[1] Afterwards he took up post as chief conductor of the Turin Radio orchestra, and resumed his connections in England to become music director of the New London Opera Company from 1946 to 1948.
The cast included Leonie Rysanek in the title role, with Placido Domingo as Cavaradossi and Theo Adam as Scarpia.
He conducted the earlier series of Italian opera on long-playing Decca Records featuring Renata Tebaldi and the Accademia di Santa Cecilia (Rome) Orchestra and Chorus, during the 1950s.