调音师

例句：

1. 1. The pianist needs to tune his instrument before the performance.
   钢琴家需要在演出前调音他的乐器。
2. 2. The violinist is always looking for a good tuning for her concert.
   小提琴手总是在音乐会前寻找好的调音。
3. 3. The jazz musician often uses a metronome to ensure perfect pitch during performances.
   爵士音乐家经常使用节拍器来确保表演时完美音准。