Please to excuse if this post is repetitive. I have an opportunity to tour abroad (not "a broad," that's something different). It's a pick-up band and we're expected to put on a couple of sets per night of Blues. A mix of boogies and shuffles. I need a modest inventory of riffs to make it through this. Problem is, I'm an older guy and my fingers don't fly. My strength is keeping the groove. Can you awesome TB'ers recommend some songs/sources of riffs that I can borrow? Thanks in advance.