Tenshi, Ei-chan, and Shiratori all attend Kawagoe Academy. One day, they get pulled into the orbit of former conductor Haruo. He drags them into his newly founded boys choir where they suddenly find themselves performing a song in front of an audience!

If you learn the basics, 
you might be pretty decent.
إن تعلّمت الأساسيّات، فيمكنك أن تكون بارعاً
Wenn du die Basics lernst,
sehe ich Steigerungspotenzial bei dir.
Si aprendes lo básico, lo harás bien.
Si aprendes lo básico, lo harás bien.
Tu pourrais t’en sortir
en apprenant les bases.
Se apprendi le basi, migliorerai un po', no?
Se você aprender o básico,
acho que vai dar pro gasto.
Обучись основам, фундамент у тебя есть.