Computers do not have emotion, nor do they have what we would call true imagination and creativity, but what they do have is mechanical and technical perfection.
With increasing technology, an interpretation can be inputted and all the subtleties of a performance planned, and then played back with technical perfection, even creating possibilities the human body couldn't ever achieve.
The obvious drawbacks would be the psychological pleasure from the physical connection, and the lack of possibility of spontineity in performance, although with greater technology, it could become possible for a computer to monitor and actually realise with accuracy what the internal ear imagines.
The musical argument is lame, computers can do music better.
After the invention of the car, how many people seriously prefer to run or walk miles?
They have now become sports and passtimes, and I feel pianism may go this way eventually.
There are pianists who speed up recordings..why? Because the musical details can be rendered with greater clarity if initially performed at a slower speed.
What use will the ability to play fast have?
We must divide, unburden ourselves from the weighty bulk and ascend with freedom, the freedom we have until now only dreamt of.