Music question

OK, for the most part I thought the soundtrack was a bit overdone, but parts of it, like the Bach, were good.

One thing bugging me, what was the name of the tune that plays about a third of the way into the movie, while Sueon is writing something on a pad of paper and then playing with her pet turtle, flipping it over and watching it right itself? The tune sounds so familiar but I just can't place it. Seems like I've heard it in another movie. Thanks in advance.