I’m not sure why this has been compared to Bach. It’s not very similar at all, and quite jarringly disorganised. I can’t comment on the method used to make it (though would love to understand more, as this is an area that professionally interests me) but you may want to go back to the drawing board :)
A Markov chain would have done better. Something is seriously wrong here - not even the 2-grams are accurate. If your neural network can't outperform a simple control like a Markov chain, it's hardly worth publishing.