I've read on a couple sites that sometime between 2000-2003 they changed the music on the dinosaur diorama. Is this true? It was certainly about time, but I always enjoyed the old tune as being way too overdramatic to the point of humor.
Fun story on that: On my last trip, the trains reliably ran too fast to synch with the spiel on that leg of the rails. I don't know if they still do or not (I also noticed a lot of employee voiceover the spiel because of old references like the burning cabin they had to coverup.) Anyway, the train chugged through the dioramas fast enough that we were looking down Main Street and the loud and dramatic Primeval World tune was still blaring over the speakers. A guy in the next row shouts, "Oh no! The horrors of SHOPPING!" Almost everybody in that car busts out laughing.
If they changed the music, maybe they finally got around to fiddling with the whole spiel so it fits together right with whatever changes they made to the train.