In which movie is Pipa the background music?

It's the background music in the movie Letter from an Unknown Woman.

If you want to know the story and feelings of this song, you might as well watch this movie and explain it well. So I strongly recommend going to see this movie, and then all the feelings will be in my heart. Such a melodious pipa seems to have something to write. But my mind is blank and I don't know what to continue. Last night, the woman in Pipa Trip left me with infinite thoughts. This song brought me into a sad and euphemistic mood, and I was reluctant to part with it.

Listen to the pipa written by Lin Hai. Repeated preludes make people enter a state of lingering sadness and want to talk. The weak and sad sound of the keys, coupled with the unique characteristics of the oriental musical instrument pipa, makes people be dragged step by step, and finally makes people intoxicated in the artistic conception of music. During this period, violins, violas, pianos and flutes appeared and disappeared from time to time, which played a good role in harmony. It not only highlights the characteristics of pipa, but also further enriches the expressive force and thoughts and feelings of the repertoire. The most exciting and novel part of this song is the middle part of the song. Perhaps Lin Hai always has a feeling of giving up the piano. When the piano suddenly becomes the lead singer, the pipa becomes the accompaniment.

A female voice "Ah ... Ah ..." that sounds like nature, in the context of crying, Pipa's desire to express itself is vividly displayed! At the end of the song, the repeated initial melody, and the long piano sound, the whispering night fell poetically with the sunset in the water town, and the emotional catharsis got a perfect ending!