A couple of online reviewers have carped at the Donald Duck vocal on "We Wish You A Merry Christmas", but they are miserable Scrooges and deserve to be pummeled with roasted chestnuts, red-hot from the open fire.  Okay....let's not go that far.  But listen!  It is not a "Donald Duck impersonator" you hear, but Clarence "Ducky" Nash himself, the man who voiced the Donald on a jillion Disney cartoons.  This I learned from David Grisman himself.  I went backstage after a show at the Iron Horse club in Northampton, Massachusetts, several months after "Acoustic Christmas" came out.  I complimented him on his fine Donald Duck vocal, and he told me he did not do it himself, but secured the vocal services--if "vocal" is the right word--- of Mr. Nash.  And in any event, "We Wish You a Merry Christmas" is a very short cut.