This only applies to refracta if you have installed mplayer and wish to use it instead of the media player installed in refracta.
figuring out different methods of playing nested music folders with mp3 and oggs in them
this will play all files but non-media files will cause mplayer to puke
mplayer -playlist <(find "$HOME/music" -type f)
this will play only the mp3 file types
mplayer -playlist <(find $HOME/music/ -name "*.mp3" -type f)
this will play only the mp3 and ogg files
mplayer -playlist <(find $HOME/music -type f | egrep -i '(\.mp3|\.ogg)')