"Then you suddenly changed the way Posts are seen by people who have already followed a musician’s page to the net effect that an average post is seen by a tiny fraction of the people who have liked the musician."

As Facebook user and band-liker, I don't want to see every post from a band-- just the posts that are relevant to me.

I'd expect that Facebook's current post "boosting" mechanism should work excellently for self-managed, touring musicians: Make a post about a local show, then pay just a couple dollars to "boost" that post specifically to users who like your page and live in the area of the show. The UI for boosting and targeting posts is super easy already, and we should expect it will just keep getting better.

Is the author asking for automation of the posting/boosting for multiple tour dates?