Comment 15 for bug 1754125

This is a really ridiculous bug. In Ubuntu 20.04, you close the window, and the music continues playing and there is no way to stop it! There is no tray icon or anything where you can tell it to quit once you have closed the main window.

Workaround for now:

    pkill rhythmbox

or

    Search for rythmbox in "Activities", open it, and then select "Stop & Quit" in the menu.

Note that even "sudo apt purge rhythmbox" doesn't stop it playing !