This edited collection focuses on youth work and music and the ways this work with young people is measured and valued. The introduction sets out the three key themes that structure the book; the landscape of youth work and music, music production and young people’s identities, and the opportunities and constraints within the measurement of these kinds of programmes. In addition, three sub-themes run throughout the book are detailed; the impact of music-making on young people’s wellbeing, the criminalisation of minoritized groups of young people and subcultures, and the evaluation of informal education and creative education.