If Tony Stark were an instrumentalist, would he have Jarvis create an autopilot for his instrument so that he wouldn’t have to do all the work in order for it to make music?
Perhaps. For the creators of this video, they found an appropriate venue to create wind that didn’t require their lungs to put forth much work. The result, a flute that plays on autopilot (with the exception of course of the hands playing the notes).
Let’s see them get their friends together on a bus with some brass and other woodwind instruments. Would it work out the same?