Beatles: Paul Is Not Dead. Paul Is A Robot . . .

. . . and John, George and Ringo too.  This was done by university students, engineering or marketing - not sure.  The PVC is a cool idea and appropriate for the progression up to the 1:37 mark.  You'd need a new set of PVC pipe after that to continue.  Robots can play PVC better than guitar.  When robots can perform Floyd's "Echoes" in it entirety, I'll be ready to bow down to my new masters.