Before that, it was released here as part of a medley:
I have the worst memory for that, though the last time I went on it, which was probably back in the late 80s, it still had the funky exit music. The last couple of times I was in TDL, I was with others...none of whom wanted to see it.
Here's a link to sound samples from "The Music of Disneyland, Walt Disney World, and EPCOT Center". It's from Henry Fink's Disney CD site.
And here's a link to the Tokyo Disneyland Music Album. It doesn't matter which one prior to the 2008 version, because they all had the same track. No, wait, the very first MA from 1985 had a longer medley with vocals, but that was edited for all subsequent releases...and disappeared altogether with the new one...anyway...
Ben...my bad...as I was reading your post, I was listening to the Mickey Mouse Revue and someone supplanted that in my response.
So, if it's out of print now, anyone uploading it to Rodentsections (he said hopefully)?