Would those same people suffer an absolute difference in musical enjoyment if those two artists did not exist? Is there a reason to believe that another set of

Would those same people suffer an absolute difference in musical enjoyment if those two artists did not exist? Is there a reason to believe that another set of artists wouldn't have filled that gap and users would be just as happy? That is, if there was no copyright and instead we were listening to stuff artists made just because they're artists, and they find a way to create, is the public at net loss? In photography, amateurs are all over, with top equipment (it's an old joke that non-pros have the better equipment as they can better afford it). If I go to look at pictures of some place, it may very well be that professional photographers are providing zero additional value to my viewing enjoyment. Why should this be different than any other area?