Nitpick: I agree with much of what you've said here, but as it pertains to Spotify, the majors have them by the balls, and the financial predicament that puts them in likely has some influence on their outrageously low payout rates which are steadily alienating musicians, independent and "signed" alike. (As an independent/amateur electronic musician, one of the qualities I look for in a distributor to get my music on iTunes, etc. is "does not submit songs to Spotify.")

I suspect that the type of solution you've described may work, but in its current incarnation, Spotify aint it.