"Koen is terrific, her slightly quivering but eminently expressive voice supported by captivating theatrical technique. She nails the often difficult vocal passages while really giving us a sense of who is singing and what she is singing about... Other citations for outstanding performances must go to violinist Anton Steck (give this guy a recording contract!) and to Marc Minkowski and his Les Musiciens du Louvre for their ideal accompaniment in some very difficult and tricky music." (David Vernier, ClassicsToday.com)