One reasonable concern is that tech supplementation will lead to a deluge of derivative work, nullifying the efforts of the actual creators. That's always happened in some form or another, and does it really lead genuine fans away from artists they care about?
There's a comment in another thread about generating a song that includes Kurt Cobain, which is such a weird example because a computer could not have dreamed that up in a thousand years. A computer couldn't write a punk song, and mean it. It will never replace the open mic, the buskers, the songs passed across generations, the Zappas of the world, and millions of others.