sageman was an precocious child: she took her first piano lessons at the age of 6 with denyse rivière, marcel ciampi's assistant and jean-marc luisada teacher. at 9, with the orchestre philharmonique de radio france, she performed the piano concerto in d major by haydn at the salle pleyel. she entered the conservatoire de paris at the age of 13 in the class of germaine mounier. she was only seventeen when she won the 6th prize of the international chopin piano competition in warsaw, making her the youngest winner of this competition since its inception. among her major professional meetings, are those of claudio arrau, miłosz magin, hubert guillard, merces de silva telles, nikita magaloff, yevgeny malinin and eugen indjic. she then performed abroad, notably in japan, italy and switzerland, and in france. she has worked with, among others, conductors pierre dervaux and jean-françois paillard. she also performs in chamber ensembles, in particular with faustine tremblay (violin), bertrand braillard (cello), jean ferrandis (flute), dominique de williencourt (cello), and david galoustov (violin).