yīnyuèhuì / kāishǐ / qián / yuèshī / men / zài / hòutái / zhúyī / tiáoshì / zìjǐ / de / yuèqì

音乐会开始前，乐师们在后台逐一调试自己的乐器。

Before the concert began, the musicians individually tuned and tested their instruments backstage.