Sometime during the 1990s, when I was teaching philosophy at UCSD, my friend, colleague, and music teacher, Carol Plantamura, discussed the possibility of teaching a course together looking at ways in which various literary works (plays, stories, novels) had been treated as operas, and how different themes emerged in the opera and in its original. One of the pairings we planned to use was Mann's great novella and Britten's opera. Unfortunately, the course was never taught, but the idea remained with me.