it takes two to tango = if two people were involved in a bad situation, both must be responsible / the active cooperation of both parties is needed
You’re always saying it’s your wife who is destroying your relationship. But, you know, it takes two to tango.
to strike a chord = create an emotional response (букв. взять аккорд)
The speake seems to have struck a chord with his audience.
Once again, however, he discovered he had struck a chord with ordinary people.
to play by ear = to improvise
I am not sure what materials I’m going to share at the workshop. I guess I’ll just play it by ear.
to make a song and dance about something = to make something seem more important than it really is so that everyone notices it
— Your cooking is so bad!
-Will you stop making a song and dance about it?
to go for a song = to be sold very cheaply, for little money, especially for less than something is worth
You can still furnish a house for a song if you know where and how to look.