[mythtv-users] MythMusic and cover art

[MaxPower]

I read that :
+ MythMusic - music jukebox program that displays cover art on screen
in this page.
http://www.avsforum.com/avs-vb/showthread.php?s=3073305baa7bea78e71f644963de3c9a&threadid=321916&perpage=20&pagenumber=3
=-O
Anybody can explain me how to display cover art ?
When I am still under windows, I use zoomplayer which allow you to 
display cover art on screen when i listen a music then I have all cover 
art fo my musics but I don't know how to configure mythmusic to do this.