I'm really excited about the Web Audio API. I have always been fond of music but never really played an instrument. Recently I made a conscious decision to learn how to make music, including sound synthesis and music theory. The browser still remains my only instrument, but it is a pretty nice instrument. I admin that I wish I had a more rabid feedback and more fluid way of experimenting (something you get with physical instruments). But with the power of javascript and some HTML and CSS I can simply write my own instruments for the task at hand. So far learning music through the Web Audio API has been a pleasant experience.