Sorry, to hear about being screwed over for being in a PAL region. That sucks. The Beginning and the End is played during the ending, specifically the talk with Krelian.

Xenosaga has a great soundtrack but as I said, the developers smurfed up the sound editing and relegated most of those tracks to one listen only. You might be better off just picking up the OST.

For me, I found Xenogears to reach out to me more than CC. I think its because Xenogears overall had a profound affect on me. I find the sound track beautiful but then again, I prefer the slower more peaceful tracks which is why I do love the CC soundtrack as well but I can tie moments to Xenogears while I cannot for Chrono Cross.