She gained the fourth prize in the Queen Elisabeth Music Competition in Belgium [1] in 1956 (other contestants included Vladimir Ashkenazy, who won first prize, John Browning, Lazar Berman, Tamás Vásáry and Peter Frankl), the Busoni and the Van Cliburn.
She has performed throughout the world and recorded a repertoire including concertos of Brahms, Grieg, Saint-Saëns, Liszt, Mendelssohn, Schumann, Tchaikovsky, Prokofiev, Rachmaninov, Ravel, and Poulenc under the direction of Kurt Masur, Simon Rattle, Neville Marriner, etc.
She won the Grand Prix du Disque of the Académie Charles Cros for her recording of the Brahms Piano Concerto No.
To fulfill her interest in teaching and coaching young talent, Ousset has taught Master Classes in the United States, Canada, Europe, Australia, and the Far East.
This includes her annual Master class sessions, held since 1984 in the medieval village of Puycelsi in south-west France.