I can see a tool like this being really musically useful and producing great results. Theoretically, there MIGHT not be any legal issues, much like a sample that is transformed so much that it is unrecognizable. In reality, this is what every human singer does: He or she starts with the voice they were born with, then absorbs musical influences from the singers they hear. The final result is that each singer's voice is unique, yet also a "melting pot" of influences.
So I wonder when a processor like this will be available, or when I can hire an AI to create it for me? Or will I be creating the event which precipitates the END OF THE WORLD (AS WE KNOW IT) by asking an AI to make another AI? Similar to the concept that once a manufacturing robot is made which can build an exact replica of itself, it will reproduce ad infinitum, devouring all the resources of Earth and destroying the human race in the process. At least, we will have some REALLY COOL music to listen to while fighting the final battle against our robot/AI overlords.....

Doug