During an orchestra rehearsal, tensions, frustrations and conflicts emerge among the musicians. Between sarcastic comments, misunderstandings and an open confrontation with the conductor, the group is forced to confront the meaning of truly working together as an orchestra.

After the auditions, Domenico asks Barbara if he can walk her home, but she refuses. Robbo and Chiara go to eat pizza with their father, who however has to give them bad news and Chiara takes it badly. Matteo, on the other hand, locks himself in his room and won't even let his uncle in.

A chaotic day in an Italian classroom: amid grammatical difficulties, unexpected incidents, and group dynamics, tensions, irony, and solidarity intertwine between students and teachers.

Marioni puts Matteo to the test, asking him to play first violin in the Brahms symphony, together with the entire orchestra. Later, Domenico tells him about someone who had crumbled under Marioni's harsh treatment.