A certain Count Kaiserling, at one time Russian ambassador to the court of Saxony, supposedly suffered from insomnia and nervous depression. He had in attendance a clavecinist named Goldberg, a pupil of Bach’s, who, among other duties, had by his playing to wile away the miserable night hours of his unhappy patron. Hearing of the great Bach through Goldberg, Kaiserling requested him to write some harpsichord music of pleasant, cheerful character especially for these weary vigils. Bach composed and sent back a theme and thirty variations, which so pleased the count that he presented Bach with a goblet filled with one hundred Louis d’or.
One cannot but smile; the mere thought of thirty variations is soporific. Yet an examination of them will convince one that Kaiserling must have rewarded Bach for sheer delight in the music, not for the blessed forgetfulness in sleep to which it may have been expected to seduce him. The quality of these variations is inexpressibly vivacious and charming. Bach shows himself, it is true, always the master of sounds and the science of music; but this may be taken as the secure foundation on which he allows himself for once to be the brilliant and even dazzling virtuoso.
With the object in view of enchanting an amateur who must have been, ex officio, very much a man of the world at large, Bach composed objectively. That is to say he wrote not so much to express himself as to please another. The same might be said of two other of the latest harpsichord works, the Musikalisches Opfer and the Kunst der Fuge; except that in both of these masterpieces his aim was more technical. In the Goldberg Variations he is, so to speak, off duty.
Consequently, there is in them little trace of the stern, albeit tender idealist, or of the teacher, or of the man sunk in the mystery of religious devotion. There are nine canons, at every interval from the unison to the ninth, some in contrary motion. But even in these learned processes there is a social suavity and charm. Witness especially the canon at the third (the ninth variation), and that at the sixth (the eighteenth variation). Only the twenty-fifth variation seems to show Bach entirely submerged within himself. Elsewhere he is for the most part primarily a virtuoso. In the matter of wide skips, of crossing the hands, and of sparkling velocity, he outruns Scarlatti. In fact the virtuosity of the variations as a whole is far beyond Scarlatti.
To begin with, he wrote for a harpsichord with two manuals; and in many of the variations, conspicuously in the eighth, the eleventh, the twentieth, and the twenty-third, he availed himself to the uttermost of the advantages of such an instrument. The hands constantly pass by each other on their way from one extremity of the keyboard to the other, or cross and recross. The parts which they play are interwoven in complications which, unhappily, must forever be the despair of the pianist. In such cases, of course, he may not justly be compared with Scarlatti, who wrote always for one manual.
But take for example the twenty-eighth and twenty-ninth variations, which may be played on either one or two manuals. The trills and double trills in the former, together with the wide and sudden crossing of the hands, savor of Paganini and Liszt. So do the interlocked chord trills in the latter, and the airy, whirring triplets which follow them. Indeed, leaving aside a few effects in double notes, and certain others of the thunder and lightning variety which were wholly beyond the possibilities of the harpsichord, the modern pianoforte virtuoso style has little to show in advance upon the style of the Goldberg Variations.
Furthermore, if the Goldberg Variations are thus amazing from the point of view of the pianist, they are none the less so to the musician regarding their general form. There is in them positively no trace of the stereotyped form of variations of that day, which consisted either of a repetition of the theme with more and more elaborate ornament, or at best of a series of arabesques over the more or less bare harmonic foundation of the theme. The theme is for Bach but the simple germ of an idea, which, throughout the whole elaborate series, undergoes change, transformation, metamorphosis, hardly to be recognized in any of its varied forms, scarcely suggesting a unity to the work as a whole. Mood and rhythm change. New ideas sprout, seemingly quite independent of their origin. Even the harmonic foundation is veiled and altered. Bach speaks, as it were, in beautiful metaphors.
This conception and treatment of the variation form render it true greatness; endow it, indeed, as a form, with immortal life. External figurations will grow old-fashioned, or the ear will become satiated with them. But the Goldberg Variations have an inner life that cannot wither or decay. Bach’s warm imagination inspired them, gave them poetry as well as brilliance. No more modern variations are quite comparable with them except Brahms’ great series on a theme of Handel, in which, however, there is less warmth than severity, less imagination than art.
VIII
How shall Bach be placed in the history of music, in particular of pianoforte music? What part may he be said to play in the development of the art? The paternity which most composers of the nineteenth century rejoiced to fasten upon him, is hardly fitting. Bach was the father of twenty-two children in this life, but musically he died without heir. His sons Emanuel and Christian were two of the most influential composers of the next generation; but both discarded their father’s inheritance as of little service to them in the forward march of music.