The bells and whistles will come later. The producer (editor) will arrive later to work with you on the track(book). They will shorten it or lengthen it as necessary (usually shorten). They’ll make sure the chorus is strong and the words make sense and the song has a melody and the singing is on tune. But for now you need to concentrate on what you can control: the song itself. 

You’ll need to rewrite the lyrics. You’ll need to rework the harmonies. You’ll need to change instruments. You’ll need to tweak and correct and delete and redo. And you will need to finish it, because all the work later on can’t come without finishing the demo. 

If you get the song (your book) right, all those other things will be easier. Even if you have to rewrite half the thing, at least you have something to start with. At least you have somewhere to go. 

A song (book) has a beginning, middle, and end. It can be four minutes (100,000 words). It can fade out or end with a boom (exclamation point). It’s not a miracle to complete. It’s miraculous if it turns into something great, but completing it isn’t the problem. Yet so many people have this very problem. 

So finish your demo. Make it memorable. Make it passionate. Make sure it’s got that hook for the listener (reader). If you record (write) it, then the rest can happen. 

And that simple little demo (manuscript) might turn into a masterpiece. You just never know. 

So keep singing. And writing.