Sadly, I cannot read music, so I cannot take a piece and its score and teach others to sing it. I must know the piece first, after which I can usually follow the music.
After Morning Prayer this morning, I was doing a bit of research on the internet, looking for uncomplicated Anglican chants I might learn and use as and when I have enough people to warrant singing the psalms and canticles.
In the course of my research, I encountered the following, which was good for a hearty laugh. Have a listen here.