I've been going to special Parkinsons exercise classes which are set to music. The classs is in West London and organised by Parkinson's UK (local group) We really enjoy ourselves and I feel its been of great benefit, I was walking quite well when I came out of there this morning and that is certainly not always the case.
I would certainly recommend these type of classes. I too have always loved music and I dance whenever I'm able to. I don't dance very well, but who cares? I enjoy it and it does me good.