To Mozart Dr. Riemann gives the credit for the first impulses to this free disposition of orchestral parts. It is evident, however, only in his last works, and notably the three great symphonies--the mighty ‘Jupiter’ (in C) with the great double fugue in the last movement, the radiantly cheerful E-flat, and the more deeply shaded, romantic G-minor, ‘the greatest orchestral composition of the eighteenth century,’ works which alone would have assured their creator’s immortality. It would be futile to attempt a description of these monumental creations, but we cannot forego a few general remarks about them. They preach the gospel of classicism in its highest perfection. Beauty of design was never more potent in art. It is Praxitelean purity of form warmed with delicate yet rich color. The expositions are as perfect in form as they are rich in content; the developments a world of iridescent color, of playful suggestions and sweet reminders. The clean-cut individuality of his themes, as eloquent as Wagner’s leit-motifs, so lend themselves to transmutation that a single motive of three notes, revealed in a thousand new aspects, suffices as thematic material for an entire development section. We refer to the opening theme of the G minor: [Illustration: Music score] A fascinating character displayed in every conceivable circumstance and situation would be the literary equivalent of this. But often the characters are two or three, and sometimes strange faces appear and complicate the story. Mozart is the master of subtle variants, of unexpected yet not unnatural turns in melody. His recapitulations therefore are rarely literal. The essence remains the same, but it is deliciously intensified by almost imperceptible means. Compare the second theme of the last movement of the G minor in its original form with its metamorphosis: [Illustration: Music score] [Illustration: Music score]