Wow, thanks so much for the feedback! It really helps to hear such detailed feedback from a musician.
Learning timing imperfections with my current setup shouldn't be too difficult to implement. Considering that it can predict velocity quite well, I assume that it would be able to pick up timing too. It's definitely the next thing I plan on experimenting with.
That's a really good idea! I've produced mp3s with randomised velocities for the Chopin track and also the Yiruma track. I'll be adding them to the blog post. Thanks!
Thanks for the comment! The respondents weren't musicians. The respondents were selected randomly as I just wanted to see if StyleNet could fool the average person. However, I will definitely be performing surveys on musicians as I continue my work with StyleNet.