Comment 3 for bug 790121

I've attached a small patch for the rhythmbox.py to make it work with rhythmbox 2.91 (in gnome shell).
Well, it's just a workaround...ideally, it should use dbus python module instead of dbus-send command.
Only Play (a specific song), Pause playback, Resume playback, Next and Previous are implemented.
TrackList interface (http://www.mpris.org/2.1/spec/TrackList_Node.html) is not (yet ?) implemented by rhythmbox so there is no way to handle queue list (for a single track or for albums/artist).