These early letters from John Cage to Merce Cunningham will be revelatory, for while the two are widely known as a dynamic, collaborative duo, the story of how and when they came together has never been fully revealed. In the 39 letters of this collection, spanning 1942-46, Cage shows himself to be a man falling deeply in love. When they first met at the Cornish School in Seattle in the 1930s, Cage was 26 to Cunningham's 19. Their relationship was purely that of teacher and student, and Cage was...