PTSD music therapy can involve very simple tasks. One treatment for PTSD (post traumatic stress disorder) suffered by veterans involves music and guitar. The founder of the program is himself a Vietnam veteran.
National Public Radio (NPR) ran a feature story on Mark Duran, the founder of Guitars for Vets, in July 2011. Here is the story description:
Guitar Heroism: Veterans Fight PTSD With Music
An alternative treatment for veterans suffering the effects of PTSD and traumatic brain injury is growing in popularity, as is its wait list. The PTSD music therapy program, started by a Vietnam veteran, uses the soothing sounds of the guitar to help heal the vivid memory of bomb blasts, gunfire and other lingering symptoms of combat.