Even Haydn, who is said to have introduced the Minuet into the Symphony, remained faithful to the three-movement form of sonata. Beethoven, however, wrote six sonatas consisting of two movements. This change in the direction of simplicity is striking, for in his quartets the composer became more and more complex. It seems as if he were merely intent on exhibiting strong contrast of mood: agitation and repose, or fierce passion followed by heavenly calm; we are referring especially to the Sonata in E minor (Op. 90) and to the one in C minor (Op. 111). The two sonatas of Op. 49--really sonatinas written for educational purposes--may be dismissed; also Op. 54, in the composition of which the head rather than the heart of the master was engaged. Even Op. 78, in F sharp, in spite of the Countess of Brunswick, to whom it was dedicated, does not seem the outcome of strong emotion; and therefore we do not take it now into consideration. The two sonatas (Op. 90 and 111) mentioned above are strong tone-poems, and the master having apparently said all that he had to say, stopped. The story, already related, about having no time to complete Op. 111 must not be taken seriously. Nevertheless, we do not for one moment imagine that Beethoven was thus reducing the number of movements, in accordance with some preconceived scheme. The D minor (Op. 31, No. 2) and the F minor (Op. 57) sonatas, not to speak of others, form the apotheosis of the sonata in three movements as established, though not invented, by Emanuel Bach. To say that Beethoven was the perfecter of the sonata is true, but it is scarcely the whole truth. The E minor appears a first great step in the process of dissolution; the C minor, a second. They were great steps, because they were those of a very great man. The experiments as to number of movements of which we spoke in our introductory chapter were interesting; and with regard to the number, and also the position of the Minuet before or after the slow movement, those experiments acquired additional interest, inasmuch as Beethoven seems for a time to have been affected by them. The two works named are, however, of the highest importance; in them, if we are not mistaken, are to be found the first signs of the disappearance, as it were, of the sonata of three movements, and, perhaps, of the sonata itself, into the "imperceptible." After Op. 90 Beethoven wrote sonatas in four movements, but that does not affect the argument, neither does the fact, that after Beethoven are to be found several remarkable sonatas with the same number. The process of evolution of the sonata was gradual; so also will be that of its dissolution. The title of "sonata" given by Beethoven to his Op. 90 and Op. 111 does not affect the music one jot; under any other name it would sound as well. You might call the "Choral Symphony" a Divertimento, and the title would be considered inappropriate; or a Polonaise, and the name would be