There are many forms of music that can't be performed live for both economic and technical reasons. For example, it isn't reasonable to expect that people will pay 200 times as much for concert tickets for a rapper that has a 200 person gospel choir in the background. Similarly, many forms of music aren't able to be reproduced live, like certain types of electronic and industrial sounds. If we say there is no longer any prohibition against unauthorized copying of music then, while it's unlikely we'll start losing entire genres of music wholesale, there are certain artistic choices and stylistic devices that just won't be easily available.
There are many forms of music that can't be performed live for both economic and technical reasons. For example, it isn't reasonable to expect that people will pay 200 times as much for concert tickets for a rapper that has a 200 person gospel choir in the background. Similarly, many forms of music aren't able to be reproduced live, like certain types of electronic and industrial sounds. If we say there is no longer any prohibition against unauthorized copying of music then, while it's unlikely we'll start losing entire genres of music wholesale, there are certain artistic choices and stylistic devices that just won't be easily available.