The arrangement of Amazing Grace
for recorder orchestra (which can also be accompanied by piano and guitar) presents absolutely no problems for beginners. I have played it a few times with Blue Tuesday - unsurprisingly, it was not particularly satisfactory as there were just five of us. It seems that a large number of players is required to achieve a nice effect
With this piece, my recorder and folk-music worlds overlap as I have played (penny-whistle) and sang Amazing Grace
literally hundreds of times.
This arrangement may be found in Memory and Amazing Grace