11 Problems Music Can Solve

I'm only copying the one we are interested in, rest available at the link.
http://mentalfloss.com/article/30649/11-problems-music-can-solve

3. The Damaging Effects of Brain Damage

Of the 1.5 million Americans who sustain brain damage each year, roughly 90,000 of them will be left with a long-term movement or speech disability. As treatment, researchers use music to stimulate the areas of the brain that control these two functions.
When given a rhythm to walk or dance to, people with neurological damage caused by stroke or Parkinson's disease can "regain a symmetrical stride and a sense of balance." The beats in music help serve as a footstep cue for the brain.
Similarly, rhythm and pitch can help patients sing what words they can't say. A study of autistic children who couldn't speak found that music therapy helped these children articulate words. Some of these kids said their first words ever as a result of the treatment.
"We are just starting to understand how powerful music can be. We don't know what the limits are." says Michael De Georgia, director of the Center for Music and Medicine at Case Western Reserve University's University Hospitals Case Medical Center in Cleveland.