So unless you believe that Spotify is bad at business and there's an extra ~75% of revenue Spotify could pull out of a hat, this is basically impossible to satisfy without cratering the total revenue by doubling prices, which is probably not in artist's interests.
This seems like it would roughly double Spotify's costs: https://www.republicworld.com/technology-news/apps/how-much-...
And Spotify is already paying out 75% of it's revenue to royalty holders: https://www.rollingstone.com/music/music-features/spotify-pr...
So unless you believe that Spotify is bad at business and there's an extra ~75% of revenue Spotify could pull out of a hat, this is basically impossible to satisfy without cratering the total revenue by doubling prices, which is probably not in artist's interests.