Early nineteenth-century spectacles displayed on the stage of the Paris Opéra prompted wide-ranging discussions about the nature and function of technology, with contemporary writers and musicians negotiating technology’s many meanings in their critical reception, compositions, and performances. Continuing into the twentieth century, sound recording and cinematic technologies profoundly affected perceptions of music and its performers. These technologies offered singers a means of constructing innovative understandings of the voice and body, while also subjecting female bodies to male-dominated modes of reception. The unceasing development of these technologies continues to create new, interactive ways for exploring the past and shaping a future for the classical repertoire. The conflicts addressed in these five papers add to discourses about one of modernism’s most enduring crises: the role of the machine in modern life.