Music therapy is a very cool thing.
Some who can't talk can sing.
Some who can't see can play.
Some who can't hear can write and create.
Sometimes a stroke victim who has lost his or her speaking ability can sing, or can be coached to speak through singing.
There is an incredible woman percussionist who can't hear, but can feel the sound.
Many who can't see a thing can play the piano or guitar etc. incredibly well because they have a more acute sense of hearing.