(I listened to the entire score you posted of Spirit, and that is a lovely soundtrack. Really deserves some attention for it's quality and feelings. Lot of effort was put into that score, and you can tell. Hans Zimmer obviously really got into that one, as did Bryan Adams. His song, "Sound the Bugle" at about the 47 min mark in that video was stunning, deep, and even chilling. Makes you want to break down. Mr. Zimmer made free the open range and gave me the exhilarating feel of the open and wild west! He also brought in action scores and truly deep saddening moments! Beautiful score you guys.)
One of my favorite soundtracks of all time is the Forrest Gump scores. Scored by the brilliant Alan Silvestri. This was his breakout scores that will probably never be reproduced. It was truly amazing.