Excellent quiz! This is hard - and you might like to mention that the list includes incomplete and unfinished works as well as complete ones. You have "Don Rodriguo" but that's a typo as it should be "Don Rodrigue" - see http://digital.wustl.edu/bizet/works/Don_Rodrigue.html
More hard opera quizzes would be great. Thanks for this one.
More hard opera quizzes would be great. Thanks for this one.