Following this is the little waltz in D-flat, opus 64, so often heard, and so many times built over in all sorts of double notes, thirds, sixths, etc. It illustrates the knack which Chopin had of developing a pleasing whole out of very slight materials. Observe the extreme simplicity of the bass.
The name nocturne was invented by John Field, who wrote twelve pieces with this title (the remaining ones of the twenty usually printed were named by the publishers) which are, in effect, sonnets; little lyric pieces, of greater or less depth, having the general type of a song without words, but preferably of a melancholy or tender character, and the form of a melody with accompaniment. Chopin took up this form and greatly ennobled it. His nocturnes are vastly more beautiful and original than those of Field; they have greater variety, deeper tenderness, and in every way are more distinguished and characteristic. The little nocturne in E-flat, opus 9, is one which is now very generally played upon every sort of instrument capable of singing a soprano melody.
The waltz which concludes the first program is of a more brilliant character than the two little ones earlier upon the list. It begins, after the introduction, with a double rhythm, the right hand playing a melody in double measure, while the left hand goes on in triple rhythm. It should be played with brilliancy, the left hand quite crisp and clear, but light; the right hand rather brilliantly. The syncopation gives place to agreeable running work for the right hand, and this again to another subject in double notes, a very earnest melody. A little later there is another short melody, and the double-note subject returns, and so all the material over again.
SECOND AND THIRD PROGRAMS.
The Fantasia Impromptu in C-sharp minor belongs to that class of Chopin's works mentioned in the beginning of this chapter, in which pleasing effects are made by fluent running work, containing more or less changing notes and other forms of dissonance—running work so fast that the ear does not follow each note, but skims along the melodic thread, as it were, the general impression of an "effect" being the form of conscious delight. This kind of effect in music, which depends in part upon the persistence of the pianoforte tone after the keys are released, was original with Chopin; or, if we can not say that he fully originated, he certainly brought it to greater perfection than any of his predecessors ever did. Moreover, the runs of Chopin are more complicated and daring, yet at the same time better adapted to rapid performance than any of those by the older writers for pianoforte. In the present instance, moreover, there is a further unsettling element in the fact that against the six tones of the right hand groups, the left hand plays groups of four tones. This, which was never carried out upon so extensive a scale before, is now perfectly easy to perform, although in Chopin's time it was considered a difficulty. It serves to impart an elusiveness to the effect of the music, entirely in keeping with the name.
The place of "middle piece" in this Fantasia Impromptu is filled by a slow melody which in effect is a nocturne—quite in the manner of the middle piece in the Impromptu in A-flat. The principal ideas in this are also somewhat varied in their repetitions, and light and delicate arabesques occur, which add to the charm. The slow part affords a repose, after which the principal subject returns and the whole comes to a brilliant ending by means of a coda. The entire piece is extremely characteristic of Chopin's genius.
The Scherzo in B-flat minor is more analogous to a ballad than to any one of the varieties of piece known under this title in the classic works of Beethoven. It consists substantially of about four primordial elements. First there is the principal subject, the characteristic expression of which is due to the unexpected answer of the suggestive query of the low notes by strongly accented chords. Still in emphatic mood the second idea comes in (measure 48) with running work.
Then follows a delightful melodic idea (measure 64), which is repeated in different keys no less than five times, the entire period extending to forty-nine measures. The accompaniment of this charming melody is thoroughly Chopinesque, consisting of arpeggio figures generally covering the compass of a tenth. In spirit this passage is much the same as that of the second idea in the Polonaise in C-sharp minor. After the second idea there is a coda concluding this part of the work. It is then repeated with a few very slight modifications. Then follows the middle piece, a melody in the key of A, a novel relation of keys which no doubt troubled the contemporaries of the composer more than it need us, since the key of the piece is properly D-flat, the B-flat minor predominating only at the beginning, and the first part, as well as the last, closing in D-flat major. From this to the key of A, counting by the keyboard, is a major third, and everybody knows that the major third above or below is an agreeable relation of keys; moreover, we have here the music to tell us. This middle part is mystic and truly charming. Several other ideas meet us presently, one of which, with triplets in the alto, is rather troublesome to play and still more troublesome when it occurs again near the end of the piece. Also some very pretty running work, charmingly supported upon a bass containing considerable melody of its own. This running work is afterward given considerable development, as also is the subordinate idea already referred to characterized by the triplets in the alto, and then the first part of the piece is repeated, and so at length the end.
The name "scherzo" in this connection is to be taken as signifying a play of fancy, rather than an especially playful mood in the sense of mirthfulness; in fact, it is not easy to find a rational explanation of the grounds upon which Chopin named his pieces, especially as between the ballad and the scherzo. Probably, however, he called those ballads which begin with a lyric melody and depend for their interest mainly upon the development of lyric melodies, reaching at times a tragic elevation; but even with this explanation the line between the nocturnes and ballads will be very difficult to draw, since the Nocturne in G major, of which we shall speak presently, lacks only a more brilliant treatment in the middle part to raise it to the grade of a ballad. On the whole, we may as well confess that all these names are more or less fanciful and perhaps applied without any very deep reason, but simply because it was necessary to call the pieces by some title in particular.
The Nocturne in G major is one of the most pleasing of all the compositions of this kind in the works of Chopin. It is also rather difficult, since the principal subject runs in thirds and sixths more or less chromatic and in the course of the treatment these figures are carried into a large number of keys, in all of which they have to retain a singing quality of tone in the soprano and a very clean and legato style of performance; but when adequately done the effect is very charming indeed. The middle part again consists of a very beautiful digression, something like a cradle song, or a barcarolle,—a gentle, peaceful, rocking motion,—and then again the principal subject returns. It will be seen that in spite of the quite considerable length to which this nocturne is developed, it never rises to the impassioned diversification which Chopin seems to have considered as belonging to the ballad. For all his ballads, no matter how quiet their opening subject, become more or less dramatic before they are completed.