AMTA publications provide a valuable source of information. They're designed to explain how music therapy can be used in a variety of settings.They can be downloaded for free (apart from AJMT) or hard copies can be purchased for a small cost.
Reports & Booklets
Music Therapy in Disability: Information Booklet
Bibb, J., Bower, J., Murphy, M., Baker, F.A., Hogan, B., Abad, V., Eager, R., Butcher, K. & Tamplin, J. (2018)
The purpose of this document is to enhance the understanding of music therapy in disability sector for health professionals and members of the community