
Elevator music (n) - pleasant but boring record music that is played in public places
Example: I wish they would play something besides this boring elevator music.
Ring a bell (v): (something that) sound familiar.
Example: The name rang a bell but I couldn't remember where I had heard it before.

For a song (adv) - very cheaply
Example: She bought the bed for a song at an auction.
Like a broken record (n) - someone who repeats
Example: He's always complaining about the way she treats him. He sounds like a broken record!

Blow your trumpet (v) - tell everyone proudly about your achievements
Example: Anyone will tell you she's one of the best journalists we've got, although she'd never blow her own.
Jam session (n) - an informal performance of jazz or rock music that the musicians have not planned or practised
Example: Andy and Nick had a jam session last night and kept all the neighbors awake.

Call the tune (v) - Make important decisions and control a situation
Example: Nancy said that it's her turn to call the tune.
Blow the whistle (v): bring something to the attention of other people in order to stop something bad from happening
Example: The company stopped using certain chemicals only after some workers blew the whistle on it.
Y Vân (theo Kaplan International Colleges)