I did not know about this song when I developed the plot, mind you. It would be somewhat inaccurate to say that this song, or really any song, influenced the actual overarching story of Tall Tales directly (as stated previously, this is not always true for specific story arcs). However, I have found that when I find something that resonates with some aspect of the story, it is much easier to get into the mode of thinking about the story. Even if I don't borrow any details from the song, the fact that the song makes the story more accessible to me is itself a massive benefit to my inspiration.
This is probably true of all writers, really. I can't imagine I'm saying anything as yet that is particularly unique. The point is that "The Yawning Grave" is that kind of story. The central conflict of the song, a human encroaching into affairs that they should understand but may not and drawing the ire of some great entity, is the central conflict of Tall Tales. This was sufficient for me to draw a great deal of help from the song, by listening to it and drifting off into thinking of Matteson and his enemy.
As the story progresses, I would encourage you to occasionally come back and listen to this song and think about how things are playing out, and let your speculations run wild about what is coming. Maybe, if you're lucky, you'll see some of the same things I have.
What is this?
Worldbuilding Wednesdays is a real-world blog, written by Tim McLaughlin, that gives a little peek behind the curtain of Tall Tales. That includes the process of creating the story and world, influences, world rules, and even the occasional story.