The late Jacqueline Du Pré may not have been the most disciplined cellist ever, but her impulsive and exciting playing makes her recordings irreplaceable treasures. These performances, including the seldom-heard Chopin Sonata and the cello arrangement of Franck's violin sonata, are characteristic of Du Pré at her best, with strong assistance from Daniel Barenboim's assertive collaboration. If you want more of Du Pré's music, EMI's Les Introuvables de Jacqueline Du Pré is an even better buy--six discs containing nearly all her best recordings. Whichever you choose, this is music making that demands to be heard. --Leslie Gerber