Wonder if this works with PD too?
 

Singing 'rewires' damaged brain

Teaching stroke patients to sing "rewires" their brains, helping them recover their speech, say scientists.

http://news.bbc.co.uk/1/hi/sci/tech/8526699.stm


Girija, quoted in the article:

Dr Aniruddh Patel from the Neurosciences Institute in San Diego, said the study was an example of the "explosion in research into music and the brain" over the last decade.
"People sometimes ask where in the brain music is processed and the answer is everywhere above the neck," said Dr Patel.
"Music engages huge swathes of the brain - it's not just lighting up a spot in the auditory cortex."

Singing as treatment for PD