Awesome Song
It isn't exactly my style, but I respect it for what it is. It's an amazing song as well, from as many have said, an amazing game. I gave you the 9 because it's an awesome piece of work (even though by personal taste I would give it a 7.5), but I see the work put into it and it's done well. I wish you would have emphasized a few of the background parts a bit more, and a more dramatic entrance on parts would have given my ear what it wanted to hear, but it's still a great piece.
On a side note, to anyone reading,
Goldensun DS is officially in the works right now, it was announced at E3 this year by Nintendo, google it up. Release date is set for Early 2010 I believe.