The rise of AI composition challenges traditional music literacy, built on reading notation. This paper explores how AI might reshape this skill in a world where human and machine creation intertwines. The paper contemplates whether AI renders traditional skills obsolete or fosters new ones focused on interaction with AI-generated music. The paper examines the potential of AI music creation tools in education, considering both advantages like personalised learning and potential downsides like style homogenisation. Through a technological posthumanist lens, I propose that future music literacy might involve a co-existence of traditional and AI-focused skills. Music educators will need to adapt their teaching philosophies and cultivate critical thinking in students (Laskova, 2021). This necessitates the strategic use of AI tools to empower learners in a future of democratised music creation. However, such integration requires critical examination to ensure alignment with best practices and foster a nuanced understanding of the evolving human-machine relationship in musical expression.