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 with him. Even with the availability of such sources and full access to the Rachmaninoff Archive at the Library of Congress, Bertensson and Leyda were tireless in their pursuit of privately held documents, particularly correspondence. The wonderfully engaging product of their labors masterfully incorporates primary materials into the narrative. Almost half a century after it first appeared, this volume remains essential reading. Sergei Bertensson, who knew Rachmaninoff, published other works on music and film, often with a documentary emphasis.