Wow, great job on this for being someone who dosn't play an instrument. Seriously. Sure, there are some kinda not exactly right things, but sheesh, maybe you should make your own instrument! This is a great way to teach people about machine learning in a friendly way. Keep adding to it. Obviuosly you know there is random music- you were just speaking of songs. And You seem to know about blues, so you probably also know about rhythm changes and stuff? If not- check that out- see also Donna Lee.