I worked with DarkEmeralds to the extent that she told me she'd had particular music planned for bookending each section of the story ('Restraint' is divided into 4 sections of between 5-7 hours each. Or, well, it will be when I've finished recording the final section, but you take my point?)

But that's really the only time that I've worked with an author to any extent beyond emailing them in a "Your story is awesome! May I record it?" kind of way.