I like the way the documentation is written -- two columns, with the code on the right and the documentation for that section of code on the left. Very easy to read, and perfectly suited for a short piece of code like this.
On Chrome, as far as I can tell, a playing audio file does not stop (keeps playing in the background for a certain time) even though I've navigated to a new page within that domain. Is that a feature or a bug?
Mine kept playing as I hit the back button and went back to HN. Going forward again stopped the music. Also in Chrome.
This is cool, but I couldn't find a link to the github project page on the demo or docs pages.