Shifting the center of gravity has that affect. It really wasn't too bad as long as you balanced on your toes as you leaned your backside, um, back. Not ideal for the less-than-steady (whether from libations or from or stiff-jointed ladies!
I've listened to it enough on my MP3 player (because I repeat it several times), that I figured out all the words. There were a couple of minor slips on the wording presented, but nothing to distract from the meaning.
All I know is I had 3 ladies tell me about it before I ever tried it out, so I was prepared. Forewarning is fore armed!