The following gives a general idea of the difference between Music Therapy and Sound Therapy. As it was a quickly put together, I will spend some time to re-write this with further information within the next few weeks. For now, this is what was written...
Music Therapy believes that anyone can make music, and it is therefore often used in Special Schools a lot as a way of helping children (and others) feel confident, as well as develop motor skills, etc.... it is much more musical in this sense. Although Music Therapists utilise a range of instruments in their therapy sessions, they generally stick to traditional instruments (ie. piano, guitar, drums, etc...) and it is more of a doing, 'hands on' approach/experience. Sound Therapy is an alternative approach to 're-wholling' or realigning the body through sound. In particular, the approach I am studying utilises Himalayan bowls, toning & overtoning, crystal bowls, mantra therapy, gong therapy, drum therapy & tuning forks. This approach is more of a passive experience for the client, meaning they are experiencing the sound as if they were receiving a massage or as a meditation, while the therapist creates a soundscape of healing tones to help them relax and balance out the energy system of the human body. We also create Sound Baths, where groups of people may come together to experience therapists creating an 'ethereal sound experience' where they can relax, rejuvenate and unwind.
So there are similarities, and there are even some individual therapists who will claim to be a sound therapist when they're really a music therapist, etc... Ultimately however, Sound therapy is an area which is currently an up and coming mode of healing.
