"Rachmaninoff was really a great pianist, but not a great interpreter, because he made everything into Rachmaninoff. He was a sensation in Berlin after the First World War. I heard a few recitals -- it must have been in the twenties. Technically, he was phenomenal. But I thought the sound was not very good. And from the standpoint of interpretation, it was appalling. He didn't seem to care at all what the composer meant. He even added several bars of his own to the end of the Funeral March sonata of Chopin. You know, once I played the Beethoven Eroica Variations in Chicago and Rachmaninoff came backstage during the intermission to tell me how beautiful it was. He had never heard of the piece before. He was friendly, very complimentary. But he wasn't even surprised that he had never heard of it! The Eroica Variations!