Visualizer.fm for your Songbird
SongbirdVis is a Songbird extension to visualize music using The Echo Nest's analysis data, a la visualizer.fm.
http://github.com/jsundram/songbirdvis
http://runningwithdata.tumblr.com/post/655428696/songbirdvis
Echo Nest API
SongBird Extension API
Processing.js