Violin lessons for patients with Alzheimer's Disease

We have heard of music therapy before and it involved primarily listening to music.  Now new research shows that learning to play the violin helps improve cognition in Alzheimer's patients. This is rather surprising as we have been given to understand that dementia patients will never be able to learn new things.  Besides I know for a fact that the violin is a very difficult instrument to play.  We have one at home and I have never been disciplined enough to practice everyday to play it well.  So it seems really miraculous that patients with low cognition levels can learn to play the violin and this brings about a noticeable improvement in their mental condition.  Read the full article here http://www.medscape.com/viewarticle/761572?src=mp&spon=25