As someone who struggles to play any instrument well (unless a Guitar Hero guitar is considered an instrument) I find what these two musicians are capable of absolutely stunning.
These two guys set themselves up as a human jukebox. They stand there with their instruments ready to go, and wait until an interested punter comes along and drops some money in one of the jars.
The jars are labeled with the names of various musical artists as well as fast-forward and slow-down options. The musicians react to where the money is being directed.
What we get is a piece of everlasting music that switches between different artists, styles, and speeds. And it’s fun to watch. I just wish I had their talent.