Description of Verdi's Simon Boccanegra from the Metropolitan Opera's website:
Simon Boccanegra is Verdi’s compelling portrayal of a man who is both a leader and an outsider, set against one of the most incisive depictions of politics ever put on the stage. The title character, with his complex relationships with rivals and his long-lost daughter, is one of the summits of the baritone repertoire. The opera’s complicated story and dark tone have proven stumbling blocks for many critics and audiences in America. Yet it remains a rewarding example of Verdi’s genius at its most humane and insightful.