Part 4

Chapter 43,789 wordsPublic domain

A complete discussion of musical structure would involve a history of the art from the year 1600. It must therefore suffice for the present purpose to note the main stages of development, and to analyse the chief types, first as they appear in single movements, then as they are combined into the complex organisms of sonata and symphony. Before the Florentine revolution there was virtually no such thing as a system of key-relationship, no recognition of the important effects of contrast which may be produced in a work by the alternation of different tonics. Music during the Ecclesiastical period was entirely homogeneous in structure, bound within the limits of the mode, or, at most, transcending them for a moment of tentative audacity wholly different from the firm definite scheme of modern modulation. When the change came, it was only natural that the first consequence should be a period of chaos. The lay-brothers who had broken loose from the monastery went roaming about the world with no settled plan or direction, turning along any path which promised adventure, and ending their journey wherever they happened to stop at nightfall. The Moresca in Monteverde's _Orfeo_[11] is a good example of the reaction against uniformity. It can hardly be described without anachronism in our modern terminology, but, if the attempt must be made, we may analyse it as a single melodic phrase, beginning on dominant harmony and ending on tonic, repeated four times in four different keys. In other words, it is as deficient in structural coherence as the preceding method in structural diversity.

But as our scale came into established use, and brought with it an intelligible system of related tonic notes, the value of key distribution began _pari passu_ to be recognised. Men refused any longer to acquiesce in mere indefiniteness or mere monotony, and set themselves to find some means of organising the form of composition by combining different tonal centres into a coherent system. Scientific composers, loyal to the traditions of counterpoint, endeavoured to solve their problem by the elaboration of the fugue in which unity of style is secured by the recurrent subject, and diversity of structure by the free modulation. This form, which may be said to start with the Gabrielis, and to culminate in Sebastian Bach, is of the highest interest to musicians as an attempt to make style and structure play into each other's hands: the former possessing too little diversity, the latter too little coherence to stand as separate organisms. But as it is factitious in its origin, so it is liable to become rigid and mechanical in its results; an exercise of barren ingenuity, not a warm vital expression of true emotion. Bach no doubt could breathe poetry into it, as Corneille could fill with his splendid rhetoric the hard outlines of the classical drama, but both results are great in spite of their form, not in consequence of it. Considered merely as examples of fugue structure, Bach's compositions are not greater than those of a hundred kapellmeisters of his time: they owe their greatness to the purity of their themes, and to the unapproachable perfection of their harmony. But lay aside all questions of melody and harmony, everything, in short, which can be classed under the head of style, and Beethoven's sonatas will still remain supreme in virtue of their structure. Fugue form is an artificial thing which a man can learn: sonata form is a living thing which a man must feel.

Hence it is interesting to notice that all the forms most intimately associated with the sonata may be directly traced to one primitive type of Volkslied.[12] The simplest possible contrast of key which man can adopt without falling into incoherence, is that of a melody in three strains: the first asserting the tonic, the second leading to some related key, the third repeating the tonic in order to complete the outline. Now, if we imagine the first strain given in duplicate, so as to suit the requirements of a four-line stanza of verse, we shall find ourselves with a melodic form of which 'The Bluebells of Scotland' and 'The Vicar of Bray' may be taken as familiar examples. It is probable that the immediate reiteration of the first phrase is a concession to the poet rather than a point of musical structure: in any case, the essential element of the form is to be found in the three clauses, assertion, contrast, and reassertion. 'Of this simple type,' says Dr Parry, 'there are literally thousands of examples.' It is, indeed, the most natural form of melodic sentence which the popular songs of any nation can assume: it is the living germ from which all our most complex musical organisms are developed.

At the outset there are two possible lines of evolution. First, the clause of contrast and the clause of reassertion may be repeated alternately so as to extend the number of strains to five or seven, or whatever is required by the exigencies of the words. Thus we get the primitive type of rondo, which may be illustrated by Burns' 'John Hielandman,' or by the Skye Boat Song, or by our well-known hymn for Palm Sunday. A further stage of development is reached when the number of clauses is fixed at five: and when the fourth, instead of being an exact repetition of the second, affords a change of contrast by presenting a new episode in a new key. This gives us the rondo form as used by Rameau and Purcell, Haydn and Mozart, and occasionally Beethoven himself. We need only compare the exquisite song, 'I attempt from Love's sickness to fly,' with the Adagio of the Sonata Pathétique to see that in point of structure they are identical. No doubt there were some experiments on the way. Haydn tried the form as a vehicle of variations; Mozart opened a new path in his Piano Sonata in A minor: but all these were only variants of the established type which either left its structure unaltered, or remained as exceptions. It was not until the time of Beethoven that the rondo passed into its third stage of development, and even with him the earlier form is of not infrequent occurrence.[13]

Secondly, the number of clauses may be restricted to the original three, and each strain by itself organised into a higher degree of diversity. In its simplest form, which may be exemplified by the minuets of many early sonatas, the first strain ends with a full close in the tonic, and thus, while it fulfils the function of asserting its key, does so at the expense of complete detachment from the second. Hence it is a step towards organisation if the first strain is made to end with a half close, or even to modulate to the key from which the second is going to start. If this is so, the cadence of the third clause will have to be modified--since the tune must end with a full close in the key in which it began--and thus a new element of diversity is introduced into the work as a whole. Of this stage an instance may be found in the Minuet of Haydn's Piano Sonata in D (No. 6), where the first strain is divided into two sub-clauses, one in the tonic, the other in the dominant, and the third strain transposes the latter back and presents both of them in the same key. Here another point offers itself for consideration. If the clause of assertion has been allowed to modulate, and still more, if it has been allowed to dwell upon a key other than the tonic of the piece, it is obvious that the clause of contrast must be allowed still freer modulation--otherwise its purpose will remain unaccomplished. And by this time our clauses have grown in size and extent until it is not appropriate to call them clauses any longer. They have become sentences, or even paragraphs, each with its own subdivisions, its own structural character, and its own function in the general economy of the whole movement. For instance, in the Minuet of Mozart's Piano Sonata in A major, the first part consists of a 10-bar tune in A followed by an 8-bar tune in E: the second begins in B minor, drops to A minor, and then passes through an augmented sixth to the dominant of A, while the third brings the work to a logical conclusion by repeating the two sections of the first in the tonic key.[14]

In its present stage of development the form is admirably suited to the short lyric movements in which it usually appears. Taken by itself it typifies the classical minuet, the air for variations, and the majority of such pianoforte pieces as the Kinderscenen and the Poetische Tonbilder. Extended by the addition of a second example, and completed by a restatement of the first, it gives us the minuet and trio of our sonatas and the common structure of the march and the polonaise. But, as the form grows in bulk and importance, as it discovers new functions and adapts itself to a new environment, so it will naturally submit to certain changes of organism. The two sections of which the first part is composed, appear at present in a direct juxtaposition which will seem crude and disconnected if the movement be increased to a larger size: and it will therefore be advisable to join them by a link of modulation that shall carry the ear gradually over the change of key. Again, the sections of contrast in the second part have hitherto fulfilled their purpose by a complete digression, not only presenting new keys but using them to exhibit new material; and it is obvious that, after the limit of a few bars, such a digression will be fatal to the unity of the work as a whole. Now the variety of key in this part is, as we have already seen, a structural necessity: and thus the readiest means of unification will be attained if we minimise the novelty of material, and use the sections of contrast, either wholly or mainly, to express phrases and themes that have been already stated in the first part of the composition. Lastly, we may notice that the third part ends by repeating in the tonic precisely the same melodic cadence which the first part ended by asserting in the dominant; and it will sometimes happen, that the clause which served admirably as the finish of a paragraph may appear abrupt or inconclusive as the finish of a chapter. In such cases the composer can extend his third part by the addition of an epilogue or coda, completing and rounding off the outline, which would otherwise be left imperfect. It must be remembered that, as a point of structure, the existence of the coda is optional. The composer may wish, for certain reasons of style, to make the first part of his work conclusive, or the last inconclusive: and in either event the need of an epilogue disappears. But, as a general rule, it may be said that the more highly organised the movement the more it will require the employment of this particular device. Continuity is best secured if all the parts of the work be made interdependent, and in that case it is only by a coda that any real climax of phraseology can be attained.

One more detail and the organism is complete. Among the many experiments in structure which mark the course of musical evolution, one of the most important is the so-called French Overture. The main feature of this form, which may be readily illustrated by the Overture to the _Messiah_, was its habit of prefacing the chief division with an introduction or prologue in slower tempo; and this device has been adopted by the great cyclic composers, and especially by Beethoven, in order to prepare the hearer for movements of unusual importance or solemnity. Like the coda, the introduction is optional in its use: depending not on the structure of the work, but on the manner of its thought and the style of its expression. In Beethoven we find three principal types: the first merely calling attention to the key of the piece, either by directly asserting it, as in the Piano Sonata in F sharp major, or by rousing expectation, as in the third Rasoumoffsky Quartett, the second containing in addition some melodic phrase which is to be employed in the succeeding movement, as in the Sonata Pathétique or the Piano Trio in E flat; and the third, as in the A major Symphony, foreshadowing the key-system, not only of the opening allegro, but of the whole work. It is hardly fantastic to compare the respective prologues of _Henry VIII._, of _Pericles_, and of _Romeo and Juliet_.

This, then, is the highest type of structural development to which Music has yet arrived. The three clauses of the primitive ballad-tune have grown into three cantos, all different in character and function, all working together in the maintenance of a single economy. The first, technically known as the Exposition, presents two subjects or paragraphs, diverse in key, and connected by a short episodical link of modulation: the second, technically known as the Development Section, consists of a fantasia on themes or phrases of the first, with such freedom of key as the composer chooses to adopt: the third, technically known as the Recapitulation, repeats the two subjects with any minimum of change that may be implied in the transposition of the second to the tonic key. Finally, if the style of the movement require it, the whole may be introduced by a Prologue and summed up by an Epilogue.[15] It is hardly necessary to point out that the principle of perfect symmetry embodied in this form is precisely the same as that on which is constructed a great drama or a great novel. At the outset our attention is divided between two main centres of interest; as the work proceeds the plan is complicated by the introduction of new centres; at its close the complications are cleared away and the interests identified. For instance, the _Alcestis_ of Euripides opens with the bare contrast of life and death, continues with those of youth and age, of mourning and hospitality, of vacillating weakness and genial strength, and finally returns to its two first themes, and unifies them by restoring its heroine from the grave. But the parallel is hardly a matter for further illustration. The exact balance and proportion of the structure will best be exhibited if we epitomise its three parts under their appropriate abstract names:--duality for the first, plurality for the second, unity for the third.

Omitting a few rare exceptions, such as the Finale of the Hammerclavier Sonata, we may say that all movements in so-called Classical form represent some definite stage in this line of evolution. No doubt experiments were tried by Schumann and Chopin and other composers of the Romantic School, but even these are not so much new discoveries as variants of the established type, sometimes due to carelessness or indifference, and sometimes to deliberate plan. It must be remembered that the generation which succeeded Beethoven paid much less attention to structure than to expression. The essays of Berlioz and Schumann, admirable in most respects, are almost entirely silent on the subject of musical form, and their work, considered from this standpoint, is not an advance but a retreat. Schumann, of course, was far the greater of the two; yet even with him we feel that deliberation has not always brought counsel. The introduction to his A minor Quartett, and still more the first movement of his C major Symphony, are really steps away from organism, condoned in part by undeniable beauties of style, but at the same time needing condonation as structural errors. Even in the shorter narrative forms of ballade and impromptu, of fantasia and novellette, the same rule holds good. Their structure will be found satisfactory in proportion as it is organic, it will be found organic in proportion as it conforms to this law of natural development.

There remains a word to be said about the combination of different numbers or movements into a continuous work. The complete sonata-form, like the Trilogies or Tetralogies of the classical drama, is a complex organism of which each part is itself organic, a corporate body composed of separate but interdependent members. Hence we should naturally expect that in the earliest examples there would be a comparative homogeneity of melodic style and key system, and that this homogeneity would be gradually differentiated as the form advanced towards perfection. This is precisely what has happened. In the first pianoforte sonata of Haydn all the movements are in the same key, as they were in the suites and partitas of a previous age; then, by steps which are readily traceable, the form progressed and developed until it reached its structural climax in Brahms. So also with the style of the work as a whole, by which is meant the selection of different organic types in its constituent members. Out of all possible alternatives--the minuet, the rondo, the air with variations, the fully-developed 'ternary' form--it is clearly the composer's business to choose specimens which will afford the most complete contrast and yet combine into the most organic unity. The gradual application of this rule is simply another name for the growth of the sonata form. One has only to compare Haydn's first quartett with one of the Rasoumoffskys to see the advance; one has only to compare the _Eroica_ Symphony with Chopin's B-flat minor Sonata to see the retrogression. In this, as in other respects, Brahms has restored the balance and has adapted the traditions of Beethoven to the language of the present day.

Enough has been said to show that this principle of organic growth not only explains the style and structure of all great Music, but answers to a fundamental need in human nature. Its laws are not mere grammatical rules, framed in one generation to be broken in the next; it makes no transitory appeal to faculties that change with every mood and every condition: if there be anything permanent and abiding in the mind of man, it is here that it will find its counterpart. Not, of course, that the present stage of development is to be regarded as final: there is probably no such thing as finality in any art. But progress is not change, it is a kind of change, and one which, from its very nature, points to a fixed ideal. We, with our limited capacities of knowledge, and our limited appreciation of beauty, may still be far behind the position that is to be occupied in future ages. But, unless the teaching of History be wholly false, we may predict with some security the direction in which that position will lie. It is as inconceivable in art as it is in physical nature, that the process of organic evolution should revert or turn aside. No doubt there will be further modification of detail--some 'Shakspearian convention' abandoned, some scheme of artistic composition revised; but every step that brings greater freedom will bring greater responsibility, and will shift the issue from artificial laws to the great code of human intelligence. We cannot suppose that the generations which look back upon our own masters will ever rest satisfied with incoherence or shapelessness or monotony. There will be new methods in the days to come, but the principles of art will remain unaltered.

FOOTNOTES:

[4] _On Education_, pp. 41-42.

[5] _See_ Example A.

[6] _See_ Example B.

[7] _See_ Example C.

[8] _See_ Example D.

[9] _See_ Example E.

[10] Finale of the A major Sonata, Op. 101.

[11] Quoted in Grove's _Dictionary_, Vol. ii. p. 501.

[12] The term sonata is here employed in the sense which it has borne since the time of Haydn. If it is widened so as to include composers of the 17th and early 18th century, we must start from two primitive types in place of one.

[13] The development may be illustrated if we take alphabetical letters to represent the clauses. The primitive ballad form is A B A: each verse being a unit, and therefore the whole song inorganic. The primitive rondo form is A B A B A B A, etc., the whole song being a unit, and therefore slightly organised. The form of Purcell's song is A B A C A, and therefore the most highly organised of the three.

[14] The analysis of the Mozart Minuet may be tabulated as follows:--

[15] As a simple instance of the form, we may take the first movement of Beethoven's Piano Sonata in G major, Op. 14, No. 3:--

III

FUNCTION

A character in one of Mr Sturgis' delightful comedies propounds a recipe for beauty, and is met by the criticism that he has omitted one important element--the beauty itself. Some such objection may perhaps be brought against the analysis of the preceding chapter. It may be said that Music cannot be appraised in terms of law and method, that scientific theories can tell us nothing about inspiration, and that without inspiration art degenerates into a soulless and mechanical exercise. No discussion of balance and design, of diversity and coherence will ever explain why we are stirred to the depths of our being by the love-duet in _Tristan_, or the slow movement in the _Fifth Symphony_, or the _Missa Papæ Marcelli_. No account of proportion in phraseology or system in key-relationship can answer the question why we find Grieg piquant, or Schumann vigorous, or Chopin graceful. In short, our _Ars Poetica_ is a mere _Gradus ad Parnassum_, containing, it may be, some hints for versification, but leaving the essentials of artistic conception entirely untouched.