Esa-Pekka Salonen and pianist Yefim Bronfman meet Dániel Hamar and László Porteleki from Hungary's leading folk music ensemble, Muzsikás.
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Bartók spent a good deal of his life in New York - here we look at how this influenced his work.
Find out more about Bartóks early life.
Take a closer look at Bartók's operas and operettas.