Hey Joe Hill:
I will tell you how I play it. Here is the recipie...
First get the Phil Ochs ablum of your choice.
Humm the intro ad nosium.
Go to Ireland for most of your youth
learn to play the Uilleann pipes
Try and get a good set -See seth galaghers web site
match your humming to the humming of the chanter
There you go!
Larry