Bill, I think, and Dean has told me as well, that most producers want to hear the lyrics and melody. They PREFER a guitar strum and decent vocal alone.
Another good friend of mine is a Nashville song writer, Kenny Beard, and he told me the same thing. Keep it simple and clean.
Now, if you are an ARTIST looking for a label, that's a whole 'nother story.
You could do like Kristofferson did to Johnny Cash and land a helicopter in Garth Brooks' back yard.
I know where he lives.
DonM