Études, Op. 25
directed by Pierre Cavasillas; composed by Fryderyk Franciszek Chopin, 1810-1849 (1836); produced by Paul Smaczny, fl. 1995-2015 and Isabel Iturriagagoitia; performed by Daniel Barenboim, 1942-, in Barenboim: Jubilee Concert in Buenos Aires (EuroArts, 2000), 2 mins