Here is a piece I wrote early 2009, a short time after starting to use GPO. Last summer, I worked on it some more and added a middle section and a new ending. It is entirely GPO4.
See what you think.
Thanks, John. Yes, I too was thinking along the lines of the "epic mini-series". Everytime the main theme modulates, go to another grand vista with 10,000 head of cattle and distant mountains in the background!