If you haven’t heard of Playing for Change and their Songs Around the World you owe it to yourself to check it out.  They basically ask musicians from all over the world to play a song on their respective instruments, then edit it together into something that is truly greater than the sum of its parts.  You can find dozens of their songs on the YouTube or the Playing for Change website.  This is one of my favorites, The Weight by The Band, featuring Robbie Robertson himself.  In the key of F-demented, if you’d like to play along.