In op. 21 there are two sets of variations—one in D, on an original theme, the second in the same key, on a Hungarian song. They are both excellent preparatory studies for the more famous pair. In them we get the peculiar Brahms technic amply illustrated—for instance, the first variation of the opus. It begins with a characteristic figure in the bass, the harmonic extensions showing how ingeniously Brahms handled the arpeggio, avoiding a tone, accentuating another and gaining new color. There are some interesting variations in this set, No. 7, with its wide intervals; No. 9, another pedal bass effect with huge skips that look like yawning precipices, yet I do not particularly care for the set, although constant study of Brahms reveals new points of interest. The variations on a Hungarian song are even less fruitful in treatment, but will repay study.
When, however, we take up op. 24, variations and fugue on a theme by Handel, we begin to sense the extraordinary fertility of Brahms. The theme itself, in B flat, is a square-toed aria, and what Brahms does with it is most entertaining, ingenious and musicianly. From the very first variation, surely full of humor, we get a view of the possibilities of the variation form. I am not sure but that these variations are more ingenuous, less sophisticated, and contain less of the étude than the Paganini variations. As they are occasionally played I shall not go into detailed description of the difficulties, except to say that the entire twenty-five are alive with musical invention and a certain genial feeling, a geniality that eminently suits the ruddy-cheeked tune of Handel. There is the fifth variation in B flat minor, there is the fourth with its bass and treble dialogue, the fourteenth in double sixths and the energetic attack of the nineteenth are all noteworthy.
The fugue is a capital specimen of close treatment, yet in spirit very free. I do not begin to find it as dry as certain of the Beethoven fugues, and it is devilishly tricky.
The variations on the Paganini theme in A minor are frankly studies, but transcendental studies, only fit to be mentioned in company with Liszt’s. Apparently the top-notch of virtuosity had been reached and there remained nothing for Brahms to do but let an astonishingly fantastic imagination loose and play pranks that would have caused Schumann to shout with admiration. The very first variation is a subtle compliment to Schumann’s toccata, and the second, with the sixths in the left hand, is very trying for players with short-breathed fingers. In the third we get rolling rhythms that excite more than they lull. In the fourth Brahms asks too much of mortal man with a top trill on a chord, the left hand gambolling over the impossible. Then follow some octave studies the reverse of easy, especially the ninth in chords. The eleventh is a veritable toccata; the thirteenth one of the most brilliant and popular of the set. The fourteenth is terrible, exacting and long, for it closes the set. Brahms, to use a faded figure of speech piles Pelion upon Ossa in the coda.
The second book starts in with a tremendous and exciting study in double notes, and the sudden muscular contractions and expansion caused by alternations of double thirds and octaves is exhausting to anyone but a virtuoso. The tenth variation, marked Feroce, energico, exhibits skilful use of arpeggio forms, and the eleventh variation is simply baffling. In the next one we get a breathing spell, one of those green melodic oases in which Brahms proves to you how easy it is for a great, strong soul to be gentle and tender.
It may not be considered amiss here to take a passing glance at some of Brahms’ daily studies for the piano. Naturally a man fond of solving abstruse technical problems, he could scarcely let pass the studies of other composers without considering them in varied aspects. So he has taken Chopin’s tender, whispering study in F minor (op. 25), and broken it on the wheel of double sixths and thirds. It may be magnificent technic, but, as Rudyard Kipling would ask: Is it art? It is certainly legitimate experimenting, but I fancy not fit for publication. A flood of imitations have resulted, and in some cases Chopin has suffered exceedingly. Happily the extreme difficulty of the Brahms transcriptions will prevent them from ever becoming as popular as much of Chopin. They are written for a parterre of virtuosi.
The étude after Chopin is entertaining for the fingers, and of more educational value than Franz Bendel’s treatment of sixths in his B flat minor study, the étude Heroique.
But what shall I say of the Weber rondo, the so-called perpetual movement, topsy-turvied by Brahms, and actually played by him in concert? It is very bewildering and finally laughable. As a left hand study in velocity it is supreme. He has subjected a presto by Bach to two rather drastic treatments, and the famous chaconne he arranged for the left hand alone. This latter has one good point, it can be played easily by both hands, and the immortal piece enjoyed, for with Bach, Brahms is reverent to a degree.
The fifty-one studies recently published are little gold mines for the student of Brahms. They are more musical than Tausig’s daily studies and also more normal. In them may be found all the norms of Brahms’ technical figuration, the mixed rhythms, the curious extensions, the double notes in thirds and sixths, with all manner of ingenious fingering. Examine the fifth study, occupying but a page, and you will find the key to one of the most formidable difficulties in the Paganini studies. It is in broken octaves, arranged in scale fashion and taken at a rapid tempo. Various examples will be found of this figure. Then there are single finger exercises, skips, scales and interlocked octaves and chords. Both books are of the highest importance. Max Vogrich says that the title of the studies should be A Hospital for Disabled Virtuosi.
The twenty-one Hungarian dances were originally arranged for the piano and afterward transferred to the orchestra. They are so familiar in their orchestral garb that I need hardly allude to them except to say that some of them are not so well adapted for the piano. But there are a half dozen that will outlive all the Liszt rhapsodies, for Brahms has penetrated more deeply the Hungarian spirit, has caught color, swing, perfume, mad melancholy and reckless joy without a suspicion of the glittering embroidery of Liszt’s virtuoso-like paraphrases. These dances of Brahms can be made to sound superbly if played by a pianist with temperament, above all a pianist who has in his veins Magyar blood.