The sequence of measures 23-24, with measures 21-22, is very beautiful and deserves special notice.
Following the sarabande the reader will observe a more florid version of it, bearing the caption, "Les agréments de la même Sarabande"--"Ornaments for the same Sarabande." This is an example of the practice, common in Bach's day, of weaving a net-work of grace-notes, trills, and other decorations about a melody, a practice due in part to the natural fondness of all musicians for "effect," and in part to the fact that the instruments of that day were so small and poor that a tone could only be sustained by being struck many times. This custom of ornamenting melodies with all manner of embroidery gave rise to the "theme and variations," a form which we shall study later.
All the other English Suites of Bach contain very beautiful sarabandes; those in the French Suites are less interesting, though the first contains a fine example.
All of Bach's twelve suites end with gay and vigorous gigues, the most rollicking of all the dances used. This is natural enough, in view of the desirability of closing the suite with an impression of energetic vitality. These gigues are in the headlong 6-8 or 12-8 meter; they are polyphonic in texture, and constructed in the binary form. Often-times a high degree of contrapuntal skill is shown in their composition, but usually this does not interfere with their light and almost careless character. A curious feature of most of them is that in the second half the motive is inverted or turned upside down.
_Bach: Gigue, from French Suite_ IV _in E-Flat_.
[Music: score] Theme of Gigue, Bach's French Suite IV, and its Inversion.
[Music: score] Inversion of theme, beginning of second half.
The gay little theme is composed of two motives, as indicated in Figure XXI, in which the long brackets show the theme and its imitation by the second voice to enter, and the short brackets show its component motives, of contrasting character. In measures 5 and 6 the theme is again imitated by the third voice (left hand part). In the course of the development a still more lively figure makes its appearance in measures 19, 23, 24 and 25.
The now familiar sequences are found at every turn. The form is binary (Part I, measures 1-26; Part II, measures 27-60). The inversion of the theme, shown in Figure XXI, makes the subject of the second half. The key-system is perfectly simple. Part I modulates from the tonic, E-flat, to the dominant, B-flat; Part II begins there and returns to the home-key.