The purpose of this article is to contribute more knowledge about digital technology in music therapy and public health, focusing on portable tablet technology. The article presents the findings from a multiple case study in which four adolescent outpatients from a mental health institution for children and adolescents participated in an iPadbased music workshop. The empirical data is sourced from qualitative interviews and participatory observation conducted during the workshop. The analysis suggests that the activity of making music with an iPad establishes and develops social relations, promotes self-esteem, and develops identity, enhances subjective wellbeing, and aids in dealing with daily life problems. Furthermore, it is suggested that the activity has value in terms of affording co-creation, strengthening agency, and building self-efficacy. The discussion includes reflections and critique concerning health-affordance, health musicking, and identity, and it argues for the benefits of using digital music technology with adolescents in mental health care.