Musicologist H.C. Robbins Landon. His new book, "Mozart: The Golden Years," traces the most troubling and creative period of the composers life, the years 1781-91. During this period, Mozart completed three controversial operas, married and wooed his wife Constanze Weber, became entangled in financial difficulties, and lived through the death of his father. In this book, the second of two volumes on the life of Wolfgang Amadeus Mozart, Landon, further explores the link between Mozart's "manic depressive disorder" and his creativity.