"Marvelous things", by Eisley, makes me think about JSMN fairies.
Otherwise, a friend of mine had done a fanmix, and the song were :
Lost-Hope : "Ballroom" by Venus and "Sanssouci" by Rufus Wainwright.
Lady Pole : "Ravens land" by Voltaire.
Jonathan and Arabella : "English Rose" by The Jan and "One more last kiss" by Ivy.
Lascelles and Drawlight : "I've been to a marvelous party" by The Divine Comedy.
The Raven King : "Out of breath" by Venus
Jonathan and Norrell : "I'm slowly turning into you" by The White Stripes (which is quite crack-ish, since it's a romance song, but otherwise it works !)