Kumiko enters Kitauji High School having been unable to forget what Reina said at a middle school concert band competition. She goes to visit the concert band at school along with classmates Hazuki and Sapphire, where they meet Reina again.
You tune against it.
توافقين النغم به
Man stimmt Instrumente damit.
Se usa para afinar instrumentos.
Se usa para afinar instrumentos.
Ça aide à accorder 
les instruments.
Serve per prendere l'intonazione.
Você afina de acordo com ele.