Wagner laid down the theories but his imitators have failed because they did not have his genius. Rimski-Korsakov is noted for his brilliant orchestration and the ugly and cruel music leading up to his situations, but he combines dignity and simplicity with realism and not with the romantic. The protogonists of his drama are, the Russian people, and that is the reason for the extended use of the chorus. There is no central situation, as the people and one character, or sometimes two, make up the drama. It is easy to omit or transpose a scene thus showing the loosenes of the dramatic construction, which is a merit in a musical play, for the composer can express the central ideas of the drama without being bound hand and foot by dramatic situations. In the modern music drama the orchestra expresses all that cannot be expressed by the dramatic action and the singers. Rimski-Korsakov's is mainly a subjective expression of composition, while Moussorgsky's orchestra is never subjective, but always objective. Borodini's "Prince Igor" is a colorful barbaric ballet while in Dargomysky's "The Water Sprite", "The Stone Guest" there are interesting intermediary recitative sections, although the recitative of "La Pskovitaine" is dry. Xaver Schwarwenka'a opera "Mataswinthe" resembles those of Wagner of the "Lohengrin" period. They are thoroughly modern. The muted horns in the orchestra give dramatic expressiveness in harmony and the composer uses the free arioso style. There is not the set form of the Italian school, but the modern declamatory arioso, monologues and duets, discarding recitative, and introducing massive ensembles with key complexity, but never smothering them with the orchestra. Balakirew and Borodini employ good airs, especially in the ballet, and color their orchestra wonderfully. Cesar Cui used melodic recitative with the interdiction of the repetitions of words, and there is an absence of duets and trios and every piece of ensemble, and every one affecting a definite and complete character. "Angelo" and "The Filibuster" are too extreme, for the three acts of recitaive become monotonous. This school's form is vague except for the audacious harmonization.