Strauss told me about his new ballet, which he wrote in the summer. It’s called ‘Schlagobers’ (whipped cream) and he said, jokingly: ‘Oh yes, when one gets old one has ideas like that.’

In America with Richard Strauss. Elisabeth Schumann’s Travel Diary (14th October to 31st December 1921). Elisabeth Schumann was a soprano who worked with Strauss in the 1920s and 1930s. He dedicated his Brentano Lieder to her.