Opera, like any other art form, has its cult figures, typically singers who died young and enacted tragedies, on stage or (sometimes "and") in their own lives. While Maria Callas is probably the best known of these, Claudia Muzio has her own legion of devotees. Like Callas, her voice had a certain veiled tone, one making it near-perfect for tragic heroines; she was an excellent actress and a beautiful woman, and also had some major vocal troubles towards the end of her career, though was still able to thrill audiences by her vocal and physical communication. (There was somethi...