She plays accordion and sings for Molotov Jukebox (band's name was mentioned, I just like saying it...er, typing it.)

Ahhhhhh, I'm so happy to hear about her working on serious scenes with David Thewlis. That really makes me feel a little safer that they'll keep more stuff to the book. Not to mention that they play my two favorite characters (and are two amazing actors) and I just really love seeing them in the films. Awesome. Awestastic, even.