Giuseppe Verdi was an opera composer who revolutionized the Italian opera with his approach to drama. Even from the beginning of his career, his commitment to drama was strong and it became even stronger as his craft as an opera composer matured. He wanted his operas to be “musico-drama” (music drama) where music is one with the drama and they enhance each other. In order to strengthen the dramatic merits of his operas, he was very selective in choosing his subject matters, librettists, and voices. When he saw the need to change the plot to enhance the drama in his operas, he often pressured the librettists to yield to his will and vision. His efforts to create “musico-drama” reached every aspect of his operas and he was not afraid to think...