Apropos to 4 hands playing the same guitar, check out The Queen Family trailer on youtube. Watch the video clip from the PBS special on this tradition of Appelachian music from one family who are still there living the tradition among themselves. It's a taste of authenticity of where this music came from. Click on the video of Henry and Mark Queen playing the same guitar together. Obviously not a new thing. These guys are great. Try and see the whole program. It's pretty awesome. There's a solo of one of them on the guitar who's so fast his right hand so loose it looks like it's about to fall off.
I'd like to hear your comments.
Also for you banjo players, check out Ralph Stanley teaches "Little Maggie"...also some great fiddlin'...