SEUSSICAL was revised three times in professional productions since Broadway.
There was pre-Broadway in Boston. Changed dramatically for Broadway and cut the song "The Lorax."
The "Cat" on Broadway changed three or four times. Cathy Rigby closed with the show. She then took it on the road and changed it up a LOT for the first national tour. "A Day For the Cat In The Hat" was cut. Lots of lyrics were changed - even some of the score. Scenes were cut, shortened, moved, etc.
Then a non-Equity tour followed a year or two later. Lots of staging changes, lyric changes, and some scene cuts/moves/shortening.
According to a friend who did the show, it's not the Broadway version. It's the non-Equity tour version, but they include "A Day For The Cat In The Hat" as optional. And there are two different scores: one for a male Cat and one for a female Cat.
"The Spectacle has, indeed, an emotional attraction of its own, but, of all the parts, it is the least artistic, and connected least with the art of poetry. For the power of Tragedy, we may be sure, is felt even apart from representation and actors. Besides, the production of spectacular effects depends more on the art of the stage machinist than on that of the poet."
--Aristotle