How did musical notation change the role of performers in Western music?

The development of musical notation fundamentally transformed the role of the performer in Western music, shifting it from a creative participant in an oral tradition to an interpreter of a fixed text.12

In early societies, performers were responsible for renewing and transforming music through personal performance, as music was largely based on oral transmission. As notation evolved—moving from simple memory aids like neumes to precise staff notation—it allowed for greater complexity and the preservation of compositions over time.132

This shift created a new dynamic:
* The Interpreter: Performers now operate within limitations imposed by the printed page and historical performance practices, such as ornamentation and improvisation.1
* Composer Supervision: Because early composers often supervised performances, many nuances were left unwritten. As notation became more complex and widespread, it increasingly dictated the sound and stylistic character of the music.1
* Creative Collaboration: While notation provides a framework, performers continue to "renew, refine, and enrich" the music, balancing their personal taste with their understanding of the composer's intent and the traditions surrounding the work.1