Frankly if Apple refuses to sell your music because you refuse to allow them to earn off of you for their free trial then Apple is guilty of coercion and needs to be slapped down.
I would cheer to see a suit against them for this action. Free trials are supposed to be at the expense of the company peddling a service, not the people who provide the goods the service profits on.
I mean, if she had signed away control of her streaming rights, how would she ever been able to "pull her songs" off of iTunes (or Spotify as she did the previous year).
She would've been in violation of a contract otherwise, and would've need to seek remedy via the courts.
I would cheer to see a suit against them for this action. Free trials are supposed to be at the expense of the company peddling a service, not the people who provide the goods the service profits on.