I looked up many papers on the internet. This is a classic case of movie music. It is said that the pianist is uneasy and cautious when looking for girls in the third class. This second time shows that he is full of romance and hope, and he is still a little uneasy, afraid of not finding a girl and offending her ... In short, it depicts the little feelings of the characters' inner anxiety ~

Thank you for telling me that the hang-up is #2! I can hear the meaning of the movie soundtrack, but I can't hear which sound it is ...