wow. i've tried the search within the forum and google and etc, and i was able to find all sheet musics (not joking) from ffx2 (and other ff series) EXCEPT 'morning glow':(
i think it's one of yuna's theme; when i was looking at the cd track list, it was with yuna's cd.
http://www.youtube.com/watch?v=-drR71dS4H4
^it's this song if anyone knows..
if anybody can find it, please PM me or post or in any way that general fans of ffx2 can get in contact with-- please. >_<

The name of the piano version is memory of waves and light... It's available on http://gh.ffshrine.org.
If you can't find it, tell me.