I was principal clarinetist in a semi professional orchestra for 28 years and had to give up my position after my first 4years of PD. Anxiety and inconsistency did me in. I am still very active as a jazz/contra dance Clar. and Sax player in my eighth year and am convinced that playing everyday is slowing my progression. I still teach privately , but no longer to advanced students. I notice that taking time off is very detrimental. My chops, breath support, and technique are eroding, but I am thankful to be still gigging. It is interesting that one can still sing proficiently with the weakened voice symptom of PD.. I was wearing off during a recent jam session and popped som sinemet and had to let it dissolve in my mouth due to no nearby water and the positive results were immediate . All we can do is be thankful for what we had and do the best we can to appreciate what we still have left. Did anyone have any luck with DBS?