Such activity as music does not necessarily mean the scope of market needs, often it is just a hobby, “a talk with god”, but it happens that people manipulate it to gain sales. Anyway, the market is just a representation of people’s needs. The monetary system as we have it today is evil and very inefficient, one day we will obsolete it in favor of other open exchange formats, but still, as long as we see music to be a product to fill needs, it can be distributed in different ways.
Remember simple formula: bad music is music that was made without pure audio pleasure inspiration.