[shameless plug] I built http://lightnote.co http://lightnote.co for exactly this. Starting from basic sound waves, it teaches music theory while skipping all o

[shameless plug] I built http://lightnote.co http://lightnote.co for exactly this. Starting from basic sound waves, it teaches music theory while skipping all of the technical notation. It definitely doesn't go as deep as this post, but I don't think that's essential to getting started.