As a guitar player, I'm at the --- played it in my college dorm room, learned all the Nirvana songs --- level.

That being said, your "demos" on the home page are incredibly awesomely impressive. And..... way way way beyond where I will ever find the time to get to.

And when I clicked the "Play with an example" link I literally LOL'd!!!

I may have no idea who your target audience is, but from this example.... it's not me :/

If you wanted to inspire someone like me to run upstairs, grab my guitar, and come back to your site to try it out really quick - and probably get hooked, I would consider making one of your demos pretty dumb-simple, if you know what I mean. Something fun or well known, not copyrighted of course, but something I could accomplish right now with my guitar.

But maybe I'm not your customer, I don't know.

If I am, maybe consider 2 buttons: Beginner Example and Advanced Example.

Good luck, this looks awesome.