This is the intended behavior. It used to operate the way you describe, but some people didn't like that and decided to change it: https://bugs.launchpad.net/ubuntu/+source/rhythmbox/+bug/38512
Worse, there's no easy option to make it operate the way you want. :\ ** Changed in: rhythmbox (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/995788 Title: rhythmbox music player keeps playing after being closed down To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rhythmbox/+bug/995788/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs