The metronomic markings are about the same in all editions.
Asiatic wildness, according to Von Bulow, pervades the B minor study, op. 25, No. 10, although Willeby claims it to be only a study in octaves "for the left hand"! Von Bulow furthermore compares it, because of its monophonic character, to the Chorus of Dervishes in Beethoven's "Ruins of Athens." Niecks says it is "a real pandemonium; for a while holier sounds intervene, but finally hell prevails." The study is for Kullak "somewhat far fetched and forced in invention, and leaves one cold, although it plunges on wildly to the end." Von Bulow has made the most complete edition. Klindworth strengthens the first and the seventh eighth notes of the fifth bar before the last by filling in the harmonics of the left hand. This etude is an important one, technically; because many pianists make little of it that does not abate its musical significance, and I am almost inclined to group it with the last two studies of this opus. The opening is portentous and soon becomes a driving whirlwind of tone. Chopin has never penned a lovelier melody than the one in B—the middle section of this etude—it is only to be compared to the one in the same key in the B minor Scherzo, while the return to the first subject is managed as consummately as in the E flat minor Scherzo, from op. 35. I confess to being stirred by this B minor study, with its tempo at a forced draught and with its precipitous close. There is a lushness about the octave melody; the tune may be a little overripe, but it is sweet, sensuous music, and about it hovers the hush of a rich evening in early autumn.
And now the "Winter Wind"—the study in A minor, op. 25, No. 11. Here even Von Bulow becomes enthusiastic:
"It must be mentioned as a particular merit of this, the longest and, in every respect, the grandest of Chopin's studies, that, while producing the greatest fulness of sound imaginable, it keeps itself so entirely and utterly unorchestral, and represents piano music in the most accurate sense of the word. To Chopin is due the honor and credit of having set fast the boundary between piano and orchestral music, which through other composers of the romantic school, especially Robert Schumann, has been defaced and blotted out, to the prejudice and damage of both species."
Kullak is equally as warm in his praise of it:
One of the grandest and most ingenious of Chopin's etudes, and a companion piece to op. 10, No. 12, which perhaps it even surpasses. It is a bravura study of the highest order; and is captivating through the boldness and originality of its passages, whose rising and falling waves, full of agitation, overflow the entire keyboard; captivating through its harmonic and modulatory shadings; and captivating, finally, through a wonderfully invented little theme which is drawn like a "red thread" through all the flashing and glittering waves of tone, and which, as it were, prevents them from scattering to all quarters of the heavens. This little theme, strictly speaking only a phrase of two measures, is, in a certain sense, the motto which serves as a superscription for the etude, appearing first one voiced, and immediately afterward four voiced. The slow time (Lento) shows the great importance which is to be attached to it. They who have followed thus far and agree with what has been said cannot be in doubt concerning the proper artistic delivery. To execute the passages quite in the rapid time prescribed one must possess a finished technique. Great facility, lightness of touch, equality, strength and endurance in the forte passages, together with the clearest distinctness in the piano and pianissimo—all of this must have been already achieved, for the interpreter must devote his whole attention to the poetic contents of the composition, especially to the delivery of the march-like rhythms, which possess a life of their own, appearing now calm and circumspect, and anon bold and challenging. The march-like element naturally requires strict playing in time.
This study is magnificent, and moreover it is music.
In bar fifteen Von Bulow makes B natural the second note of the last group, although all other editions, except Klindworth, use a B flat. Von Bulow has common sense on his side. The B flat is a misprint. The same authority recommends slow staccato practice, with the lid of the piano closed. Then the hurly-burly of tone will not intoxicate the player and submerge his critical faculty.
Each editor has his notion of the phrasing of the initial sixteenths. Thus Mikuli's—which is normal:
[Musical score excerpt]