I was thinking more like these examples:
https://ericye16.com/music-rnn/
http://www.hexahedria.com/2015/08/03/composing-music-with-recurrent-neural-networks/
I think what Vaniver means is: It seems that Emily Howell works pretty damn well, contrary to your claim that nothing does. (By, so far as I understand, means very different from any sort of neural network.)
There have been a couple of brief discussions of this in the Open Thread, but it seems likely to generate more so here's a place for it.
The original paper in Nature about AlphaGo.
Google Asia Pacific blog, where results will be posted. DeepMind's YouTube channel, where the games are being live-streamed.
Discussion on Hacker News after AlphaGo's win of the first game.