After a couple of recent visits to the park and listening to the soundtrack recordings I got off the internet (both the 2-minute version from the original soundtrack CD and the 20-minute entrance loop version), I can say with some confidence that it's been changed from the way it previously sounded in each part of the Port of Entry and outside the gates. Like, they took the old version and re-recorded it with different instrumentation and some added embellishments. Also, there is either a lot less treble in the recording or the higher instruments have been taken out, like the oboe and possibly the violin. The part that has the gamelan-type music has been noticeably altered, with almost an entire orchestra in the background and a slightly different melody. I'm not really sure why they changed it- I actually kinda liked the older one better.