This a video of me and my friend doing a bass and piano duet. We have done our own variations on a theme of Paganini's 24th Caprice. I'm using the double thumb technique a lot of the time in the video and some harmonics tapping in one section but nothing major. http://rapidshare.de/files/15249742/Paganni_Jay_and_Ben.wmv.html -- Try one. Enjoy!