Replaying Final Fantasy 9 has reminded me of these great tracks:
Frontier Village Dali
Intro theme - The Place I'll Return Someday
Simplicity aside, the melodies are lovely in FF9.
Of course I'm a fan of Vamo Alla Flamenco. I also like Quina's Theme for combining "earthy" and that sort of 8-bit "bloop bleep" sound. Treno is almost a perfect town theme, and the very first battle theme (during the Stage Show sequence) is something I wish was made into the actual battle music.