I think Sansa is writing to Jaime. The music is the red herring.

The office theory here is that the BwB being such assholes is proof [BOOK SPOILER]

Just had an interesting conversation with my coworkers.

Agreed. I thought the use of her whole name and the dire wolf sigil stamp was a pretty good indication the letter would be winging its way to the little cock robin.

Great casting, just too small of a role.

I think that is a big reason why the next two seasons are accelerated (6 and 7 episodes, respectively). We need resolution and a finish. There are no more viewers to get.

That was driving me crazy during the episode...

Holy shit. You are a genius... Now I can’t wait to see it again.