By the way, in case you missed this and your hearts weren’t broken enough already, when Christine sings the reprise of All I Ask Of You (the same part Erik sang when he proposed), he looks at the ring in his hand that she just returned to him.
Jon Snow, similar to the other Stark children (save Arya), did not have a unique theme in S1-S5. He did have a specific piece of music in episode 1.10 (Jon’s Honor), and in S3-4, Jon and Ygritte had their own theme (You Know Nothing). Beyond that, prior to S6 many of Jon’s scenes - including his death - were backed by the sorrowful Stark score.
In S6, however, Jon has a theme of his own. It is a beautiful, melancholy piece dominated by Stark cello, with a few sneaky notes of harp in the background as a nod to Rhaegar. It’s first introduced in episode 6.03, when a newly resurrected Jon appears on Davos’ arm in front of the shocked Wildlings and his loyal brothers. A longer version plays at the end of the episode when he reluctantly executes his murderers and leaves the Watch.
In episode 6.09, elements of it are used to emotionally underscore two other key moments: his brave acceptance of what he thinks will be his second death in the face of Ramsay’s attack, and later when he is being trampled and chooses to live. This too is a moment of true courage, as Jon believes the battle is lost, and regardless, he wants to survive to fight on for as long as he can. He’s choosing to return to an absolute nightmare, but that’s Jon - he can’t not fight for what’s right. I suspect the use of Jon’s theme here is designed to highlight the fact that after his understandable despondency post his resurrection, he’s found himself again.
So I mentioned I think a few Rogues can sing really well but never defined exactly what they sound like. So I decided I’d make this little post with Rogues who can sing and what they sound like, and I will put in in terms of name, the artist/band that their voice is closest to, and two examples. The only exception is with Jervis and Mary Dahl because their voices are two of the leads in the same band, and so I’ll be adding four examples.