http://www.youtube.com/watch?v=0VF0BlXP-0Y
EDIT: Floor Jansen version for the newer fans: http://www.youtube.com/watch?v=L21dXQMNOQs
The clearest break in flow is at 5:30 (slightly after, but you'll want to hear that bit first). The song is fairly long, and the story it tells is fantastic! The break at 5:35 or so is the most obvious one, and hearing that break earlier actually made me want to hear the parts before and after it, which is how I discovered this song! The effect of flow is also clearly evident in the transitions from the song - the accompanying story to the song can be very easily visualized. Much of this symphonic sound is designed in a way to use flow to tell a story, but Ghost Love Score is both the first that I heard and the best that I have heard in actually achieving this goal.