BTW, this is not unrelated to harmonica, in fact, Hal probably has more opportunity to play harp than "hand flute". But I don't know him personally, perhaps I shall inquire at SPAH.
Well Nate . . . if you want to get to Carnegie Hall . . .
I spent hours learning the art of hand noise when I was a kid, just so I could drive my 6th grade teacher insane. She never did catch on as to who the faux-flatulent malcontent was.