it's hard to compose my thoughts without interjecting some snarky music attitude, so i'm just gonna lean in and get this dig in at the top, in the friendliest possible way:

now i've said the thing, and tried to be a little bit funny, while also engaging with (and acknowledging) the emotional nature of the position i've taken in this philosophical discussion, which may not have a right answer.

i think it would be helpful to define "music" for the sake of the discussion. in the meantime, here's this...

via investopedia

maybe you would say something like "music isn't commensurable, only CDs and records are, and therefore the song doesn't have a price".

music creation is a service.

music performance is a service.

music amplification (loudness, fidelity, etc..) are services.

each of those have benefits to individual market participants. it's not so different from V4V.

i'm willing to pay a limited price for recordings of specific songs, not recordings of just any song. this indicates that it's not the recording that's special... it's the song. that price is the economic value of the song.

digitizing something doesn't suddenly remove it's value.. it merely makes it digital & readily duplicable. multiple copies of a file are not the same as the contents & structure & meaning of the file (see also: the timechain)