thinking about music in the future

The best questions are those who doesn't have a direct answer. For example, how can we see music? What do we see in music? How can we categorize such a complex timbre polyphony when we listen to music? How do we know which instruments are being played if we don't see them? Why do we feel so excited when we hear an instrument that we like? "That's a clarinet for sure!"
These questions have no answer yet, but they invite me to imagine how things will be in music.
In a near future, the computer will tell us which instruments are being played in the music we hear. The names will be, for example, "electric guitar with phaser" or "theremin with frequency filter". If the computer doesn't know the name of any given instrument, we will still be able to "handle it" because the computer will synthesize it for us in order to "rip it" from a song and play with it. But not just like a sample source. Let's say we hear a synthesized sound which suffers transformations during the whole song. First we hear distorsions, later phase changes, then flangers, and so on. We will be able to play with that sound and with all the variables which were handled in order to make that piece of music. The computer will build for us an easy to use environment that will let us control the sounds we hear. It will also be possible to change the song and make an intervention. The guitar solo of a song will now be my solo, as in karaoke.