When the software world can convincingly create new songs that sound like the hit songs people like, but sufficiently different to dodge copyright law, then it's game over.
We don't blink an eye at efforts to do things like complete one of Beethoven's symphonies. But that is going to be increased treading a thin line when it's something like create a new album by pseudo-David Bowie. And arguably over that line when it's extending the hit debut album of a living artist who just isn't recapturing that magic.
A wall of disruptive change is barreling towards the creative industry (as well as many other industries), and yet most are blissfully unaware, fighting over marginal changes to their status quo - maybe looking at demonstrations of what can be done today saying "that's neat, but it doesn't replace me" without properly looking at how quickly the other is improving.
Copyrights are about to become worthless, and so the fight over their management is going to be a short lived victory no matter who wins.