Mayu taking the soli part has made the concert band uneasy. Despite Kumiko's insistence that this is how it should be, several members take issue with Taki's decision.
if you were worried about 
that kind of thing.
‫إن قلقنا على تلك الأشياء.
si te preocuparas por algo así.
si te preocupases por algo así.
se ficar se preocupando com essas coisas.