Dramma per musica-the most usual term for Italian serious opera from the seventeenth to the early nineteenth century-was a modern, enlightened form of theater that presented a unified, artistically designed, dramatic enactment of human stories, expressed by the voice and underscored by the orchestra. This book by one of the world's most eminent musicologists illustrates the diversity of this baroque art form and explains how it has given us opera as we know it.