Well, I'm no longer with TuneCore. I left six years ago. I think of TuneCore or other entities like it as a kind of Federal Express, in that you pay them a fee to deliver a package. TuneCore generates its revenue just like Federal Express. They get paid a fee for a service that would distribute and place the music onto the services of Apple Music, Spotify, Deezer, Simfy, and others. It's a fee-for-service model, much like buying a pack of guitar strings.
On November 26th, 2018. See this statement in context.