This is great! He is using deep learning as it should be used in regards to music - not as the sole generator of songs (no technique is quite up to that yet) but as a source of inspiration for a 'proper' musician, who can take it's output and do cool things with it. As a bagpipe player, I can hear ideas for several new pieces among the output he posted! I see this in the same line as IBM's 'Chef Watson' - great if a sufficiently skilled person is there to supervise :) Good work.