The sound is okay, it's just clipping in the introduction. Skip to 00:02:30

That's cool, only thing left now; in the tutorial, change the color scheme (from black on darkgray) to something a little more legible, and make the examples clickable, so I don't have to retype them in the repl.

Still working on those colors, but I'm not sure about making examples clickable. It's hard to learn if you don't pay attention to examples. :p

I am looking for a video-presentation where Rich talks about this. Anything available online?