It is strange, but Clara Haskil was one of the handful of truly great musician pianists in the Twentieth Century. Everything she did [as now only heard in recordings] seems to be as fine as one could imagine in one's dreams, IMHO.
Yet she never quite hit the big time like some other lesser pianists of her and later times, but she quietly ploughed a wonderful musical furrow. Without exaggeration or mannerism she seemed more expressive than almost any other pianist and yet with the absolute minimum of seeming artifice. Hers was the "art that conceals art" but unlike some who seem to play without artifice, she never seems other than completely involved in communicating something that runs below the surface of the music.
If you enjoyed this, then there is a commercial Decca recording of this concerto with her [not as nice a recording as this though], but even more significant, I would rate any of her Mozart Concerto recordings as worth trying, and move out from there.
Best wishes from George
