his characters with the easy pleasure-loving spirit of the time; and the sensual frivolity of life at Venice or Vienna is mirrored in every page of his "Don Giovanni." The language displays a versatility almost amounting to gracefulness; and, remembering to what a low level of vulgarity the treatment of the subject had been brought, we shall be the more ready to recognise the effort to raise the dialogue to a more sensible and refined standard. Da Ponte was right in placing the main points on which the action turns upon the stage, and in furnishing the composer with a number of musically effective situations, in which the elements of tragedy and comedy, of horror and merriment, meet and mingle together. This curious intermixture of ground-tones, which seldom allows; expression to any one pure and unalloyed mood, is the special characteristic of the opera. Mozart grasped the unity of these contrasts lying deep in human nature, and expressed them so harmoniously as to open a new province to his art, for the development of which its mightiest forces were henceforward to be concentrated. Great as has been the progress of music in the expression of this inner life of man since Mozart's time, he has not yet been surpassed in his power of creating living forms instinct with artistic beauty, and endowed with perfect dramatic truth. When Goethe declared that Mozart would have been the man to compose his "Faust,"[133] he was thinking of "Don Giovanni"; but it could scarcely have been the merely external manipulation of the plot, however skilful, which directed his opinion. With the instinctive certainty of genius he felt the universality of Mozart's conception and representation of humanity, and acknowledged him as his equal on what was, in his judgment, a far more extensive field than this. The commencement of the opera[134] sets us at once in the midst of the action: the passionate intensity of the first {DON GIOVANNI.} (162) scene, the villainy which is practised before our eyes, prepare us for the deep shadow which is to fall on the picture of reckless pleasure-seeking, and for its horrifying conclusion; nor is the humorous element altogether absent:--