The development of modern styles of elite music education played a crucial role in entrenching Werktreue as the dominant practice within classical music performance. Focusing on Germany’s first conservatory, the Leipzig conservatory, which was founded in 1843, this article analyzes how Werktreue , understood as a set of tacit competencies and sensibilities that must be learned by musicians, was produced at a single historical site. Archival documents of the institution, as well as the correspondence and writings of teachers and students like Felix Mendelssohn, William Rockstro, and Ethel Smyth, show that the central objective of musical pedagogy was the faithful interpretation of musical works. Isolated as a discrete subject of training, performing musical works also functioned as the principal mode of student assessment through semesterly examinations. To transmit the necessary skills for this paradigm of performance, pupils’ bodily capacities ( Technik ) and ability to understand and interpret canonic compositions ( Vortrag ) became essential targets of conservatory pedagogy. Ubiquitous visibility among students, and the intense competition that this visibility engendered, went hand in hand with institutionalizing styles of musical expertise that continue to this day. In exploring these developments, this article asks how the productive power of modern conservatory training contributed not only to Werktreue ’s rise over a wide geography, but also to the remarkable stability with which it has pervaded performance practice across multiple generations.

Established in 1795 in the aftermath of the French Revolution, the Paris Conservatoire emerged from a training school for National Guard musicians. Aligned with the French Republic’s broader educational reforms, the Conservatoire was marked by its secularization, standardized curriculum, military-style discipline, and hierarchical organization. Among its most ambitious achievements was the publication of new instruction treatises from 1799 to 1814. Covering elementary theory, solfège, harmony, and all the major instruments, these methods articulated the Conservatoire’s pedagogy and circulated widely in nineteenth-century Europe. Hugot and Wunderlich’s Méthode de flûte (1804) exemplifies the Conservatoire’s approach, making a distinct break from methods published only a few years earlier: abstract technical drills predominate, evenness of tone quality in all key areas is emphasized, and the instruction of improvisation is curtailed. Airs , brunettes , and other pieces typical of ancien régime tutors are replaced with exercises demanding repetitive practicing. Meticulous instructions for the mastery of the flute’s four-key mechanism bear a striking resemblance to rifle-handling directions in contemporary military training and combat manuals by Jacques-Antoine-Hippolyte, Comte de Guibert, and others. The Conservatoire instruction manuals serve not only as guidebooks to historical fingerings and period performance style; they also can be read as social and political texts. Meant to advance a more rational music pedagogy, these treatises show the extent to which the military model permeated everyday life in post-revolutionary France. Further, they demonstrate a new conception of musical training beyond personal development toward the creation of professional musicians serving a patriotic, republican function. The treatise thus becomes what Michel Foucault calls a “simple instrument,” disciplining musicians’ bodies for the political goals of the state.