 But a year later, at her Crystal Palace performance of the Chopin F minor concerto, he was warming to her, calling it 'the most successful feat of interpretation and execution I have ever heard her achieve'.Her once-popular late 1920s recording of Schumann's Piano Concerto in A minor represents a direct tradition from the composer.Harold C. Schonberg observed, 'behind her neat, controlled, tasteful playing one can see the specter of Clara'.