Where this kind of technology becomes useful and totally moral is where recordings have ceased to be available.
Copying records that you might otherwise be buying, that means the people who make the record aren't getting money thye otherwise would, with a small bit of that going to the artiste.
But when a recording is no longer available, it's a whole different matter. The only way it can be passed on and the music shared is by copying. It's not cheating the artistes, it's honouring them.
That's why this business with honking duck being silenced (copyright on records pressed in 1924!) is so monstrous.