stylophone

I was in Glasgow last week and had some time to waste before I went to meet someone. I took a wander to Relics and got lost in there for over an hour. I found this amazing wee stylophone for £4 and was dying to get home to have a go. When I opened the box there was a piece of paper inside with a youtube link written on it.
This is what I found:



The strange this is, this guy lives in Leeds...