Composer-conductor Andre Previn, 69, and his wife, Heather Mary Previn, 50, after 17 years of marriage. She filed for divorce, citing "irreconcilable differences." Mrs. Previn, who lives on Martha's Vineyard with her son, sells jewelry at her Edgartown MA store, SQN. Andre Previn has been married four times, including an 8-year marriage to actress Mia Farrow.