Carousel of Progress/ Progress City Question

[X-S Tech]

I have heard two versions of the Progress City portion of the Carousel of Progress and have a question. The versions are almost identical but there are a few variances and one version makes reference to the GE Nuclear Power Plant, the music even becomes slightly sinister, though it's billed as "a welcome neighbor". Did two versions play at Disneyland, or is one possibly a demo.

 

[Louis Gonzalez]

The one with the sinister music was the first and original master. Nobody seems to remember this version ever playing there. The other version is the one that definetly played. So... The sinister one eiter played for a VERY brief time or never at all...