I have a (now in maintenance-mode) site at http://eMusicTheory.com http://eMusicTheory.com that's based on Java applets... but based on the number of subscribin

I have a (now in maintenance-mode) site at http://eMusicTheory.com http://eMusicTheory.com that's based on Java applets... but based on the number of subscribing teachers who are contacting me over the past 2 years saying "the school is getting a bunch of iPads, but the drills don't work!", at some point I'm going to have to start migrating to JavaScript. I have a pretty significant codebase (in Java, for now) representing music theory concepts as objects, which should be pretty simple to convert to JS, but I haven't tried tackling the notation rendering yet at all -- mostly because I've been busy on another project for 2 years now. Get in touch if you'll be open sourcing this library, or if you have any interest in building JS-based music theory drills; there's certainly a market.