"Pipa Language" is the soundtrack, opening and closing song in the movie "Letter from a Strange Woman". The faraway mood matches the tone of the movie. The heroine's monologue with "Pipa Language" pierces the depths of one's soul, and a faint sadness rises from the heart, love is never a person's business, I love you, but it has nothing to do with you. I love you, but it has nothing to do with you." The Pipa Language interpretation is spot on.
Their own Baidu encyclopedia.