The passage states that the operas of the Florentine Camerata are A. unjustifiably ignored by musicologists B. not generally considered to be of high aesthetic value even though they are important in the history of music C. among those works in which popular historical themes were portrayed in a musical production D. often inappropriately cited as examples of musical works in which a new principle of organization was introduced E. minor exceptions to the well-established generalization that the aesthetic worth of a composition determines its importance in the history of music