Imperial March on bagpipes!
Begone, most unholy and thoroughly awesome abomination! Darth Vader on a unicycle, playing the bagpipes!
The best thing is the second-highest rated comment:
That is an incredibly effective way of demonstrating the Doppler effect!
You can hear the pitch of the bagpipes changing as he moves towards and away from the camera. That’s what the Doppler effect is: the perceived sound has a lower pitch (lower frequency) as the source (e.g. an ambulance or any vehicle with a siren) approaches you, but then it has a higher pitch as it moves away from you.
How awesome is that?