The Magic of OperaAmong the many introductions to opera, this is perhaps the best. J. Merrill Knapp, Professor Emeritus at Princeton University, divides his subject into two parts: In the first, he discusses the structure, production, theatrical conventions, and esthetics of opera; in the second, he features biographies of the major composers and cogent analyses of exemplary qualities in their works. Opera should have a wide appeal, says Knapp in his Preface. In the