What happens to an authors work (music book, composition etc.) when a music company does not reprint the book after the initial printing?

The author receives a minimal amount of royalties but the book is not reprinted and the publisher owns the right to the book, not the author, composer or arranger.

The publisher owns the right to these works which means since they will not reprint, the works can no longer be used by the public.

I write books- for people to use them, I want some compensation but
I'd rather have people using the books.

Richie