The variations demand special attention. The theme is suggestive of a national melody, and its effect is heightened by the different treatment of each part when repeated, which also gives fulness and variety to the variations. Each of these is artistically worked out in detail and of distinctly individual character; the last is especially remarkable, in which the viola, to a very lively figure, carries out the theme in its simplest enunciation as a true Cantus firmus. The whole impression is one of freshness and beauty of conception, elevated and enlivened by the difficulties which offered themselves. Nothing more charming can be imagined than the first trio of the second minuet; its tender purity charms us like that of a flower gleaming through the grass.
Haydn seems to have made no use of the increased resources offered by the quintet, although other musicians—Boccherini, for instance—cultivated this branch. It would appear to have been for some particular occasions that Mozart composed four great string quintets, in which he followed the track laid out in the first quartets. Two were composed in the spring of 1787, after his return from Prague—[ 24 ]
C major, composed April 19, 1787 (515 K.).
G major, composed May 16, 1787 (516 K.).—
the other two—
D major, composed December, 1790 (593 K.).
E flat major, composed April 12, 1791 (614 K.).—
at short intervals, "at the earnest solicitation of a musical friend," as the publisher's announcement declares.[ 25 ]
Mozart doubles the viola[ 26 ]—not like Boccherini in his 155 quintets, the violoncello[ 27 ]—whereby little alteration in tone, colour, or structure is effected. The doubling of the violoncello gives it a predominance which its very charm of tone THE QUINTET. renders all the more dangerous: whereas the strengthening of the less strongly accentuated middle parts by the addition of a viola gives freer scope for a lengthy composition. The additional instrument gives increase of freedom in the formation of melodies and their harmonic development, but it also lays on the composer the obligation of providing independent occupation for the enlarged parts. A chief consideration is the grouping of the parts in their numerous possible combinations. The first viola corresponds to the first violin as leader of melodies, while the second viola leaves the violoncello greater freedom of action; these parts share the melodies in twos or threes, either alternately or in imitative interweaving; the division of a motif as question and answer among different instruments is especially facilitated thereby. Again, two divisions may be placed in effective contrast, the violins being supported by a viola, or the violas by the violoncello. But the device first used by Haydn in his quartets, of giving two parts in octaves, is perhaps the most effective in the quintets, a threefold augmentation being even employed in the trio of the E flat major quintet (614 K.). Finally, it is easier to strengthen the violoncello by the viola here than it is in the quartet. It is not that all these resources are out of reach for the quartet, but that they find freer and fuller scope in the quintet. The effect of the quintet is not massive; it rests on the characteristic movement of the individual parts, and demands greater freedom in order that this movement of manifold and differing forces may be well ordered and instinct with living power. The increased forces require greater space for their activity, if only on account of the increased mass of sound. If the middle parts are to move freely without pressing on each other, the outer parts must be farther apart, and this has a decided influence on the melodies and the sound effects, the general impression becoming more forcible and brilliant. The dimensions must also be increased in other directions. A theme, to be divided among five parts, and a working-out which is to give each of them fair play, must be planned from the first. The original motif of the first Allegro of the C major quintet (515 K.)—[See Page Image] MOZART'S INSTRUMENTAL MUSIC. involves of necessity the continuation of the idea enunciated; and only after a third repetition with modifications is it allowed to proceed to a conclusion. It has thus become too far developed to allow of a repetition of the whole theme; it starts again in C minor, is further developed by harmonic inflections; and after a short by-play on a tributary, it is again taken up and leads on to the second theme; we have thus a complete organic development of the first motif. The second theme is then of course carried out, and finally we have the broadly designed motif which brings the part to a conclusion in a gradually increasing crescendo for all the parts; the whole movement thus gains considerably in dimensions.
The motif of the first movement of the E flat major quintet (614 K.)—[See Page Image]