selfish music
When you play music at a very low volume so that you are the only one who can hear it.
"It's so quiet in the office! Are you listening to selfish music again?"
"Yep."
"Well, I don't want to work in silence. I'll turn on some of my own, too!"
"Yep."
"Well, I don't want to work in silence. I'll turn on some of my own, too!"