Abstract
There’s a common assumption that Western classical music performance essentially involves an ideal of perfect compliance: to perform a musical work, the performer must intend to play all of the notes in the score of that work, without deviating. Many accounts of musical ontology focus on Western classical music; consequently, they take this assumption to be fundamental to their accounts. However, recent musicological research reveals that this ideal is a relatively recent phenomenon, and doesn’t fit much paradigmatic classical music. I use this research to argue that philosophers of music should reject the common assumption