This is a bit of a strange request.
Recently, I found this theme on youtube, and checked where to download it in the comments. There, the uploader replied that it came from Galbadia Hotel. When I asked him if he could be more specific, I got told to go to Galbadia Hotel. I feel like an idiot for requesting something that might already be on the site, but I've searched for everything related. Gundam, symphony, orchestra, Yasua Uragami, Senshi, Kidou, even Gandamu...
Thanks in advance..
OH almost forgot:
http://www.youtube.com/watch?v=4V0_jG-NoOE
the song.