Maz, there's a preview on the web site, and part of it was definitely riffing over a blues progression. I also noticed some weird stuff camera cut to camera cut. One shot you see a couple accordions on top of a piano along with a framed photo. Then the next shot you see the photo on the wall along with a hanging fiddle. Knowing Wilson has an interesting sense of humor, and he runs the film company, it wouldn't suprise me if he did that kind of thing on purpose to see if anyone notices.
Should have the DVD in my hands early next week. Looking forward to it
Steve.