广播里播放着一些欢快的曲子。

The radio plays some cheerful ___tunes.

他花了一下午时间调校吉他，让它听起来更悦耳。

He spent the afternoon ___tuning his guitar to make it sound more pleasant.

她每周都要给钢琴调音。

She ___tunes the piano every week.

她的想法和团队的目标完全一致。

Her ideas are perfectly ___in tune with the team's goals.