This is a little different than that. For instance, 'The Great Gig in the Sky' begins JUST as the tornado appears, and lasts exactly the lenght of the storm. And I also remember the ending heartbeat coinciding with Dorothy beating on the Tin Man's chest to see if he has a heart. There are many such coincidences. The Wicked Witch first appearing in a cloud of smoke just as the word "black" is spoken in 'Us and Them' was cool.