Listening to music with MacBooks lid closed
Solution 1:
Your MacBook will normally always go to sleep when you close the lid, and that unfortunately will stop the music playing.
But there is a way to stop your Mac from going to sleep when you close the lid with a simple shell command.
Disable sleeping when lid is closed:
sudo pmset -a disablesleep 1
Re-enable sleeping when lid is closed:
sudo pmset -a disablesleep 0