Pianist and teacher who contributed greatly to recording the works of Chopin, Liszt, Mendelssohn, among others.
Her first concert was given when she was 11.
Her skills were so admired that Arturo Toscanini hired her as his first female pianist.
She was married to Russian businessman Vladimir Dorfmann. They had a daughter, Natacha Ullman, who would become writer Natacha Stewart.
She helped Barbara Stanwyck train for the role of a concert pianist in The Other Love from 1947.