A podcast website Rebel Force Radio, has a podcast called Star Wars Oxygen. David W. Collins, with zite runner Jimmy Mac, do a wonderful job of breaking down the scores of John Williams opus. They also cover how it relates to other scores.
There has been a bit of disappointment by some, pertaining to Michael Giacchino's ROGUE ONE score. The latest episode of the podcast (38) does a great job of breaking it down, giving me a wonderful appreciation for the music.
If you love the music, I recommend you check it out.
Sorry I missed it Greg. Better late than never. The other podcasts on the website are good as well, but sometimes they get into minutiae that even I think is too much. That said, there are some good episodes as well.