Yeah, Dave Ferguson is great. Apparently he picked up on the looping thing from Son of Dave, but after he went back to South Africa he seems to be taking it in a whole new direction. This was really really cool, and one of the best harp renditions of Amazing Grace thrown in at the end there. He got a drone by overdubbing two layers of octaves on the looper, which really made it sound like bagpipes! Also, I never noticed this in his other vids, but he's got a wireless rig attached to a bullet mic. That looks really cool!
very cool, in addition to all the layering of the loops, his vibrato is fantastic.. i especially like how he comes off of a tight cupped tone to a chord on vibrato to trail out the solo.