Kumiko and the others join the concert band, and they choose their instruments. Their eccentric senior, Asuka, still likes to mess with them.
After that, please gather at the 
instrument you wish to play.
بعدها، بمقدوركم التجمّع عند مكان الآلة التي تودّون العزف عليها
Danach nimmt sich bitte jeder
das Instrument, das ihm gefällt.
Luego, reúnanse alrededor del 
instrumento que les interese tocar.
Después, quedaos en el instrumento que os interese.
Ensuite, vous vous regrouperez
par instruments.
Dopo di che, vi raggrupperete
 in base allo strumento che vorreste suonare.
Depois disso, reúnam-se junto
ao instrumento que deseja tocar.