* http://blog.nihilogic.dk/2010/04/html5-audio-visualizations.html (Demo and API by Jacob Seidelin)
* http://weare.buildingsky.net/processing/pjsaudio/examples/audiofilter.html (Demo by Corban Brook)
* http://scotland.proximity.on.ca/dxr/tmp/audio/shaker/ Csound shaker instrument ported to JavaScript