Taki decides that the band will choose the euphonium soli player by voting on one final audition. Kumiko then decides that they should choose based on sound alone, and so the two of them audition anonymously.
You want to play the soli 
with Kousaka-san, don't you?
‫تريدين عزف السولي مع كوساكا-سان، أليس كذلك؟
Du möchtest das Solo
mit Kōsaka-san spielen, nicht?
Tu... vuoi suonare l'assolo
insieme a Kousaka, vero?
Você quer tocar o solo
com Kousaka-san, não é?
Ты ведь хочешь…
играть соло… с Косакой?