This intimate nature finds an antithesis in the Toccata and Fugue in D minor,[68] which belongs chronologically to the same period; it is still Buxtehude, but it is conceived throughout in a picturesque style. It lacks only an argument to establish by every right its character as "program music." The two rapid and dazzling flashes, a peal of thunder, rumbling heavily in the reverberations of a chord slowly broken, and above the vibration of the deep pedal, augmented in intensity by its duration; wind, then hail;—we are in the midst of the classic tempest. Entirely a thing of virtuosity, appreciated even by those who take account of nothing in the arts but the illusion gained, the Toccata earned brilliant success for Bach upon his journey to the smaller German courts, and contributed in large measure toward the extension of his fame.
This composition belongs to a whole series of virtuosic works, as well as the prelude and fugue,[69] in E major in the edition of W. Rust (Bach-Gesellschaft), and in C in Griepenkerl's (Peters); and, above all, the celebrated fugue in D major.[70]
Despite the advance in technique, this prelude and fugue are still in the earlier manner; certain characteristics, such as the division into several movements, indicate that the early influences which governed Bach are still potent. Nevertheless, there is in the stately prelude something of the dignity of the French overture; in the Alla Breve[71] a recollection of the Italian compositions of the same name is natural. Thus later studies betray themselves more in certain details than in the work as a whole; the subject of the fugue reveals its similarity to Buxtehude in its general style, and in its movement (see the theme in F quoted previously).
Another inheritance from Buxtehude is the prelude and fugue in G minor;[72] especially the prelude, with its wealth of harmonies suddenly broken off, hardly to be employed again; the fugue, with the repeated notes in its subject. An advance over all the fugues of which we have thus far spoken, this one is notable for its strict maintenance of four-part polyphony; the facility and the spirit which we observe in the counterpoint, especially at the entrances of the subject, and the flexibility of the imitations, indicate the presence of a new wealth of resource, and a surety of technique which is master of itself.
We must also include in the product of this period a set of eight preludes and fugues,[73] which, although very simple, are already the work of a fine hand. They are undoubtedly compositions which Bach destined for his pupils.
Bach is now about to cast himself free from the restrictions placed about him by the study of his first masters; finally in possession of all their resources, he will acquire those of others, enlarging his field of vision, already marvelously well-prepared by his earlier labors to make room for the results of his search after new conquests.
II
During Bach's first years in Weimar a new factor enters into his evolution, or rather forces itself upon it, quite without seeking on his part; it is simply the result of the experience gained in the fulfilment of his new duties.
Ever since this epoch Weimar has been distinguished among the German courts by a more refined culture, a taste for art which up to the present time has never diminished.