Throughout his career as composer, conductor, and pianist, Sergei Rachmaninoff (1873-1943) was an intensely private individual. When Bertensson and Leyda's 1956 biography appeared, it lifted the veil of secrecy from several areas of Rachmaninoff's life, especially concerning the genesis of his compositions and how their critical reception affected him. The authors consulted a number of people who knew Rachmaninoff, who worked with him, and who corresponded...