Cool vid of kudzurunner taking it to the streets. I sometimes say to myself, if I busk for ten years (20 years?) I might get good like this. I might be too old but I'll keep trying...
Yeah, that foghorn thing is a neat trick. I spent years learning how to make my Db harp sound like the steam whistle of the Natchez paddlewheel boat. It still scares me, how realistic it is.