highly recommend chrono symphonic as an interpretation of the incredible original.
My favorite was always Frog's theme, alternating between the triumphant knightly and the devastatingly tragic (which perfectly fit the character). Ah, what a perfect game with a soundtrack to match!
Just in case you haven't seen it already, check out Terra Nil! It's such a chill game, the perfect answer to "The world is difficult and I am tired"