Re: Grandia III soundtrack,

The three “Arrangement” tracks, (Disc 1 Track 20), (Disc 2 Track 24), and (Disc 2 Track 29), what themes are they supposed to be arrangements of?

I imagine they’re alternate versions of other pieces in the score, but I can’t seem to line them up with any of the other themes; I'm playing them back to back to each of the pieces that they could be re-arrangements of, but right now, I'm not able to draw any parallels.

Are these three tracks supposed to be original tracks in their own right? If so, why would they be called arrangements??

Anyone have any idea?