Thanks for reporting this bug and help in making Ubuntu better. This is still present in Ubuntu 14.04 with Rhythmbox 3.0.1. I have filed a but upstream, but I think there may be a rationale behind this notification. Imagine that you are playing music, and you mute for some reason the music. If you close Rhythmbox, there will be music still playing in the background. But if there is not music playing Rhythmbox will close for good, so the notification is telling you that this is the case. It is different with Skype or Firefox, there's never anything going on in the background when you close them. I think this is what they are going to answer upstream about this bug.
** Bug watch added: GNOME Bug Tracker #727937 https://bugzilla.gnome.org/show_bug.cgi?id=727937 ** Also affects: rhythmbox via https://bugzilla.gnome.org/show_bug.cgi?id=727937 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to rhythmbox in Ubuntu. https://bugs.launchpad.net/bugs/1130786 Title: Rhythmbox unnecessarily announces "Not Playing" when I close it. Status in The Rhythmbox Music Management Application: Unknown Status in “rhythmbox” package in Ubuntu: Confirmed Bug description: Open Rhythmbox Close Rhythmbox Notice a notification bubble appears which announces "Not Playing" along with the RB logo. This seems unnecessary given I'm currently not listening to anything and I actively closed the RB window - indicating that I'm not wanting to listen to something. I don't need to be told that the music player is now no longer playing. Skype doesn't tell me it's not on a call when I close it, and firefox doesn't tell me I'm not browsing when I close that. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: rhythmbox 2.98-0ubuntu3 ProcVersionSignature: Ubuntu 3.8.0-6.13-generic 3.8.0-rc7 Uname: Linux 3.8.0-6-generic x86_64 ApportVersion: 2.8-0ubuntu4 Architecture: amd64 Date: Wed Feb 20 17:02:52 2013 EcryptfsInUse: Yes InstallationDate: Installed on 2012-06-29 (235 days ago) InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) MarkForUpload: True SourcePackage: rhythmbox UpgradeStatus: Upgraded to raring on 2013-01-18 (32 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/rhythmbox/+bug/1130786/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp