It’s hard to remember because in that cycle they changed the music halfway through the cycle but you could use either the old or the new music. I want to say the video above was the first version of the music which started in 97, because I did level 5 at the beginning of that cycle, and that’s what I think I used. Anyway if you look at videos from after ‘01 they still might be using the first half music. So I guess it depends which one you’re remembering from ‘03.
Okay here’s an example. You can hear the two versions of the music in this video of a level 5 session in ‘03-‘04. My recollection is that the music playing while the gymnast in the video is on beam around 50 seconds, and the one she does her floor routine to, was the “new music”. But at the beginning of the video you can hear that some people are using the other one (which I recall being the “old music”).