Was he the most talented unknown composer of the 20th century? Some called him the "Canadian Mozart." Andre Mathieu was an astonishing prodigy as a composer and pianist. He played his own compositions at Carnegie Hall when he was 11, he beat the young Leonard Bernstein in a composition competition when he was 13. But he was also deeply troubled. He withdrew from public life before his 20s, and died, already forgotten, at age 39 in 1968. We'll hear the Tucson Symphony in concert, playing a set of Ballet Scenes by Andre Mathieu.