John, you could use a slowdowner like the free Best Practice on a Windows PC. You can transpose 1/2 note up too with it. And learn Cherokee Waltz? Just about the same melody. Nout
Actually, I know the Cherokee Waltz very well. Learned it watching and listening to Robert Jardell playing with Dewey Balfa.
I have Audacity and can use that to move songs up or down. I just didn't know where to start. Heck.. I only know my accordions are "C" and "D" because that's what I was told. Why they are that... got no clue. I just mash buttons.