I've been making a playlist of all the themes, in order, with the thought that I might eventually write a post theorizing about what they're doing. Lots of people have already pointed out that they are variations on a theme, and that they seem to be related to the content of the episode, but I still think it could be fun to write something.
Just gotta wait until ep 12 airs and part 3 of the score appears. (By the way, I'm so hyped for the finale, I cannot even.)
I would buy this on vinyl in a heartbeat.