Here's a YouTube video which you might find interesting, enjoyable, and educational.
There's a bit of music education, and certainly some American history in this video. And the performer is quite a likable guy, to be sure.
Enjoy!
Comment from Dianne:
Keith, thanks so much for sharing. Rick and I enjoyed it very much. We usually sing Amazing Grace on karaoke night when we are in Rockport. Now whenever we sing it we'll think of that bit of musical education and those 5 great black keys.