Haruki is entranced by Setsuna's singing on the rooftop, and plots to get her to join the Light Music Club no matter what.  But she hates standing out, so convincing her is incredibly difficult.  Meanwhile, the club has an even bigger problem.  The elite student from Music Room 2 he was trying to persuade to join his club as the keyboard player isn't a member of the Music Class, it's a mysterious person whose class and identity are a total unknown.
Have some fun and forget all about it.
Vergnüg dich und vergiss das alles.
Puedes divertirte y olvidarlo todo.
Así podrás divertirte y 
dejar tus penas atrás.
On va se défouler 
et tout te faire oublier !
Venha se divertir e esquecer tudo isso.