Thank you James, yes the headphone mix is quite interesting and yes you are probably right about the sameness of it. But I suppose that is part of the point, it is about how when you lay down to sleep but can not because your Inner Voice (The Unquiet Mind) will not become quite and still, it just keeps nagging away at the edge of your consciousness keeping you from sleep.
Perhaps I will revisit and add that melody, thanks for the ears and comment.