During World War II she played in factories and for British and American troops and performed in Myra Hess's National Gallery concerts.[6] In 1937 her London debut under the baton of Sir Henry Wood brought her worldwide critical acclaim, while the conductor linked her playing to his memories of Eugène Ysaÿe.[15] Haendel performed many concerts and tours with pianist Ronald Turini, a native of Montreal, including sonatas of Brahms and Franck.In 2014, Supraphon issued a 5-CD set of her live and studio recordings made in Prague between 1957 and 1965, including a famous one of Lalo's Symphonie espagnole conducted by Karel Ančerl.Paying tribute to her teacher George Enescu, her Decca recording of his Violin Sonata with Vladimir Ashkenazy in 2000 earned her a Diapason d'Or.[12] Haendel's emotive performances have inspired a generation of new violinists, including Anne-Sophie Mutter, David Garrett and Maxim Vengerov.In June 2009, she appeared on a Channel 4 television programme, The World's Greatest Musical Prodigies, in which she advised the then 16-year-old British composer Alex Prior on which children to choose to play his composition.