I too tried to contact the composer. I got no feedback. I agree with you this is an amazing score and one of the best this year. I've watched the film 2 times now and I can't get enough of that score. I really hope this will be released soon.
Here is my review for Indie Game: The Movie by Jim Guthrie. http://soundtracknerd.tumblr.com/post/32048435876/indie-game-the-movie-by-jim-guthrie-review Enjoy reading.