1. call the tune
   v.定调子,发号施令,操纵
   
2. tune in
   调频,调谐,收听,收看;协调,一致
   
3. tune up
   v.调音,定弦,调整,调节,<口>开始演奏
   
4. signature tune
   音调
   

1. He tuned his violin before he started playing.
   演奏前他先将小提琴调音。
2. He was playing an old tune on his guitar.
   他在用吉它弹着一首老曲子。
3. The colors are perfectly tuned to each other.
   颜色很协调。
4. The orchestra was tuning up before the concert.
   管弦乐队在音乐会开始前在调音。
5. The Baby was tuning up for another spell of weeping.
   婴儿正在开始另一阵哭泣。

　3个名词解释

　2个动词解释