So very sorry to hear this. Keep in mind folks, the man is a real survivor. He's been a shining example to so many of us for so long. If past performance is any indication, he's bound to get a handle on this too. From the tasteful, amazing picking to trad jazz singing to jug band to interpriting Joni M. and so many others---his Peter And The Wolf done jug band style is just beautiful. And he has continued to do all of it with ultimate acoustic taste with adherance to what is the best of this strange folk subculture we are all a part of. Damn it, life sure is unfair during these too numerous dips in our various pursuits of happiness.
All my hearfelt best thoughts go out to you, Dave, and thanks for all the songs I've stole from you over the years.