May 11, 2012
Getting Started with Web Audio API
Boris Smus has written an outstanding tutorial demonstrating how to use the new (and not yet adopted, barely supported) Web Audio API. The API utilizes webkitAudioContext() to build a very functional audio playback system that could be used to build interactive audio engines.
Unfortunately, support for the new Web Audio API is limited mainly to Google Chrome. The article indicates that Safari can support the API, too, but I've not yet found a way to make that happen.