My crack at it: Greed is economic theory agnostic. When an artist only makes pennies per album sold while the publishers reap dollars, it seems pretty obvious where the issue lies. The music industry has been corrupt to the core for many decades, kept alive only by it's sheer objective value through people's love for music.

Hard disagree. Greed may very well be a learned behavior. You cannot expect people, on a large scale at least, to eschew the kind of practices that are encouraged by the mode of production they live in. You cannot expect virtue when it is consistently punished, and the adverse behavior consistently rewarded.

Spotify underpays artists because that is what winning companies do. Spotify is playing the game correctly.

If anything, private ownership of intellectual property is far more defensible under socialism than real property. Intellectual property is all the product of someone's labor. Real property, by contrast, involves dedicating to private use something that was pre-existing that nobody personally created.

Many of the works that are protected by IP law, arguably most of those that are created for commercial purposes, are the product of many people's labor.

The abolition of private property and profit motive renders IP law useless. Unless there's something you're seeing that I'm not.