It's more than just words.
Music therapy is a viable psychotherapeutic tool.
People who are grieving and can't seem to let go, elderly persons who are experiencing a loss of a home or identity, and people who are depressed and don't know why may all benefit from music therapy. Music is an interesting thing. It's a way for people to start listening to their inner person. When people look inward they tend to find a fair bit of sadness, anger, or hurt-definitely not pleasant emotions. This is a good starting point for many people who must then try to link those feelings to the time when they first started, even if it means going back to their childhood.