David Holbrook , poet. educationalist, and author of a recent study of Mahler. finds that music offers a sense of meaning in life, by expressing joy in existence, even in the face of death. His choice of records ranges from Bach to Varese and includes Debussy's L'isle joyeuse played by WALTER GIESEKING , chamber music by Mozart, a movement from Shostakovich's Fourth Symphony, and a song from. Mahler's Kindertotenlieder, sung by DIETRICH FISCHER-DIESKAU.