At times in the middle it seems almost too frantic for me to consider it a true adagietto. It comes aross more as a tone poem of sorts with the heavy brass (which I like!) and the more excited passages. It seems to alternate between an almost oriental sound and a more renaissance Italy sound. Perhaps it evokes for me images of Marco Polo then!
I listened to the newer version and I like the section you added as well. Just one complaint and suggestion. The suggestion is to post a mp3 as well as the video because (here is the complaint) the video just doesn't have the same sound quality as the MP3 does.
Check out this for a video scroller that lets you use better sound quality