Installation von Rhytmbox Plugins wie z.B. Lyrics Anzeige auf Ubuntu 14.04:

 sudo add-apt-repository ppa:fossfreedom/rhythmbox-plugins

 sudo apt-get update

If you want to install all the plugins:

 sudo apt-get install rhythmbox-plugin-complete

Links

http://askubuntu.com/questions/147942/how-do-i-install-third-party-rhythmbox-plugins