7 - change your tune改变论调

例句：

He was against the idea to start with, but he soon changed his tune when he realized how much money he'd get.

一开始他反对这个主意，可是等他意识到自己能赚到那么多钱时就立刻改变了态度。

8 - and all that jazz以及诸如此类

例句：

They sell televisions and radios and all that jazz.

他们经销电视、收音机之类的商品。

9 - for a song非常便宜地

例句：

She bought the bed for a song at an auction.

她在一次拍卖会上以非常便宜的价格买下了这张床。

10 - elevator music公共场合播放的音乐

例句：

Apart from finding shopping malls boring, Keith finds the elevator music that is played particularly irritating.

除了觉得购物商场无聊之外，基斯还觉得公共场合播放的音乐特别烦人。

11 - be music to sb's ears（对某人）是悦耳的声音

例句：

The sound of her key in the lock was music to my ears.

她的钥匙转动门锁的声音对我来说就是悦耳的音乐。

12 - Jam session即兴音乐

例句：

After dinner, Tom and Harry got their guitars out and started a jam session. It was wonderful.

晚餐之后，汤姆和哈里拿出了吉他，即兴演奏了一段。真是太棒了。