Different people have very different relationships to art (in this case, music). For me, the aspects of communication and empathy are key: I think of a song as a message from a particular person at a particular time trying to get across a particular feeling, message, etc.

There is nothing wrong with your approach to music appreciation (removing the author entirely and appreciating it as an isolated work), but it's worth recognizing that a lot of people have different values from you here and their preferred mode of music appreciation is equally valid.