This article discusses music service teachers' notions of pedagogical competence and occupational prospects as they approach mid-career. Respondents were drawn from a comprehensive life history study of 28 Local Education Authority employees. Of this larger cohort, 20 individuals contributed to findings discussed here. Data were collected and analysed between October 2002 and March 2004. Findings suggest a critical phase between 36 and 42 years of age. The episode entails reaching a professional apex, plateau or crisis in light of high pedagogical efficacy and career limitations. It culminates in a transformation of self-identity. Owing to respondents' unease about this period, the career structure of music service teachers is questioned.