The Menuhins is the story of a miraculous family of great musicians and religious leaders. It is told here by the nephew of Yehudi Menuhin, the violinist regarded as the greatest musical prodigy since Mozart. Elements of the story have been told before: how two Russian Jews living in San Francisco, Moshe and Marutha Menuhin, raised a brood of child prodigy musicians that astounded the world. It seemed the stuff of legend. Yehudi, with his violin and his younger pianist sisters, Hephzibah and Yaltah, displayed as children a musical gift rarely equaled by the finest musicians. But few outside...