in 2011, barton performed the role of mère marie in poulenc's "dialogues of the carmelites" at the bavarian state opera in munich. also in 2011, barton debuted with the lyric opera of chicago. she sang three roles: the voice of the mother in offenbach's "the tales of hoffmann", the nurse in mussorgsky's "boris godunov", and the dryade in richard strauss's "ariadne auf naxos".