Over ten years, and in thousands of letters, Tchaikovsky was immersed in a secret relationship with a musical confident and financial benefactor. Nadezhda von Meck, the wife of a wealthy engineer, became infatuated with Tchaikovsky's music as well as the man himself. Meanwhile, She counseled him about how to get free of his wife of convenience. More importantly, Nadezhda gave him feedback on his works-in-progress and provided him with the space...