We're still a long way away. While these new results are impressive, it's still basically a very complex markov chain. It doesn't understand anything about the emotional impact of the music it writes, nor how to tailor a piece to evoke a certain emotion in the listener. It's not an AI that we can ask to make a certain type of composition; there's no "Computer, write me a waltz! Write me a melody for this love song I wrote! Write me some spooky music!". It can only create based on what it's been trained on. And I suppose it's arguable that "creating based on what you've been trained on" is what humans do, too. But there's a lot more to creativity than that. The RNN that made this music is groundbreaking in its ability to discover and reproduce the structure of human music, but it isn't intelligent, and it's nowhere near AGI.