The celebrated music-education series that featured Leonard Bernstein discussing themes or the works of a particular composer, and using the New York Philharmonic to illustrate his points. Subjects ranged from `What Is a Concerto?' and `Happy Birthday, Igor Stravinsky' to `The Latin American Spirit' and (in the first program) `What Does Music Mean?' All told, Bernstein led 53 of the concerts and won four Emmys. Pianist Andre Watts made his debut (at age 16) in a 1963 program.