Really interesting thoughts.
From the creativity side - as per one definition of creativity - to create something new/never seen before by combining or putting together things/thoughts/knowledge that we already possess. This can be easily be understood as an outcome feature of Deep Analytics. I would say it can be applied to the music and novel as well - it didn't create it from the scratch, AI needed to combine something that was already taught to create it. In other words - like human brain, but much faster. This is surely the beginning and I think it needs couple of years in order to be put in mainstream - couple, not dozens.. gives me chills.