The essays in this volume grew out of an international Beethoven conference held in honor of Lewis Lockwood at Harvard University in 1996. Michelle Fillion's opening essay explores the Mass in C and its turn away from the "heroic" style of the "middle-period" works. In "Beethoven and the Aesthetic State," Karol Berger reflects on the manner in which the composer's music often shifts back and forth between a "real" and an "imagined" world. William...