What makes all study of this kind particularly necessary to the would-be intelligent music-lover of to-day is that our generation seems to be going through a period of unusual confusion in all matters of taste. Whether it be that our resources have accumulated faster than our powers of assimilation could develop, or that popular education, while increasing the amount of musical enjoyment, has lowered its quality, or that the ever-present commercialism has betrayed us—whatever be the causes, it is certain that almost all our standards have suffered from a false liberalism, that we have lost old lines and boundaries without getting anything to put in their place, and that much as we may boast of no longer starving our artistic instincts as did our puritan forefathers, we do not yet discriminatingly nourish them, but rather overeat ourselves sick. There is hardly any branch of music where this tendency to excess may not be discovered. The modern conception of the piano, for instance, as a rival of the orchestra in richness, variety, and power of sound has adulterated piano style in many respects. It has led directly to ‘ungrateful’ writing for the piano by composers, to pounding and other exaggerations by players. There are few musicians nowadays who show the fine self-control that made Schumann and Chopin models of how the piano should be treated. The rare intuition of Debussy in this respect is one of the true justifications of a vogue not perhaps altogether free from faddism.

In chamber music, notably the string quartet, where delicateness of sonority is even more vital to the style, since it is the condition of the clearness of the individual voices, and cannot be departed from without an immediate coarsening of the texture, there is the same tendency to imitate the orchestra. One hears many modern quartets in which all four instruments keep restlessly sawing away, often on two strings at once, as if they were taking part in a hurdle race or a debating society, rather than in a work of art. Special effects like harmonics and the use of the mute, appropriate enough in solos and at long intervals, are grossly abused. In striving to be something beyond its frame this most exquisite combination of four musical personalities loses all its intimateness, all its charm. Even orchestral music itself does not escape these perversions. There is a distinct cult at the present day, especially in France, for playing at concerts music originally written to accompany pantomimes or ballets, and even for composing pieces intended for concert according to the processes suitable for such illustrative music—with highly spiced sonorous effects, schemes of structure based on dramatic action, and little or no purely musical interest. Indeed, all thoughtful observers must sometimes ask themselves if this universal tendency to force things out of their natural fields, to make them do not what they can do best, but what they are least expected to do, is not a symptom of a grave disorder of our æsthetic sense, a preference of novelty to beauty, a debased fondness for the queer, an invasion of art by that low curiosity which draws a street crowd around any one who will stand on his head, or wear his clothes wrong side before. The reader genuinely fond of music will be glad to combat this tendency to the best of his power, and to that end will inform himself of those peculiarities of instruments by which appropriateness of style is so largely determined.

What the average reader can get from his study of the theoretical portions of ‘The Art of Music’ will depend largely on his instinctive sense of the larger bearing of technical facts. Studied with pedantic insistence of detail harmony is a dry subject; studied with an imagination eager for the light it throws on general æsthetic questions it proves unexpectedly illuminating. Harmony describes the material available to the musician; it is, we might say, the dictionary from which each composer chooses the words he needs to express his thought; and to study it is therefore for the lover of music much what it is for the lover of literature to study the vocabularies of his favorite authors—the derivations of the words, their ancient associations, the flavors which cling about them. Just as Sir Thomas Browne has his special words, noble-sounding, many-syllabled, and his special forms of sentence that roll grandly off the tongue, and as Keats finds in the same English a completely different instrument, capable of romantic utterance and full of elusive suggestion: so the harmony of Bach is not the harmony of Schumann, although it is made out of the same notes and even many of the same chords. Indeed, the very same chord is not the same in effect, in style, when used in the context of two composers, or even of one composer in two different moods; a chord is a chameleon that takes the color of its surroundings. How full of sadness, of infinite resignation, is the first B flat chord in the Adagio of the Ninth Symphony! How the very same B flat chord pulsates with energy in the Allegro of the Fourth! The study of the action and reaction of harmony and style is a fascinating one, in spite of its difficulty—one on which books might be written, as many have been on the choice of words in literature.

Easier, however, and much more directly helpful to appreciation, is the study of the chief principles of musical form or structure, as they affect, not the composer, but the listener. As one going into a foreign country provides himself with some guidance as to the main things he is going to see there, so the music lover to whom symphonic music remains to some degree a foreign region likes to find out before he hears it what he is to listen for. That knowledge in detail will be found in the essay on musical form in Volume XII. Here it is our business, as before, avoiding detail, to get such a bird’s-eye view as may be possible of the most general facts of musical form. Especially agreeable and useful would it be if we could show that, in music as elsewhere, form and formalism are two essentially different things, and that while formalism is the conventionalizing and stiffening that indicate lowered vitality or incipient death in a work of art, form is the necessary shape it takes because it is alive. The formless is not yet alive; the formal is dying or dead; only the formed truly lives. Therefore musical form is quite simple and natural, like the branching of trees or the crystallizing of salts, and the study of it is based on observation and common sense, and strives to determine how sounds have to be ordered to become intelligible.

Essentially there are but three processes concerned in musical construction—the announcement or exposition of the themes, their elaboration or development, and their recapitulation. These processes are the natural outcome of quite simple psychological facts, and are duplicated in literature and other arts. The announcement of a theme is the preliminary statement, made as simple and as brief as possible, of the thought with which the composer proposes to occupy himself. For the listener, it is the presentation of a bit of melody of a particular rhythmic profile which he remembers by this profile, this characteristic combination of long and short, accented and unaccented notes, just as he remembers a person by the shape of his face. Careful attention to the main themes of a composition is of vital importance to appreciation, since the themes are the actors of the musical drama, and all the action is really only the working out of their latent characteristics.

This is what we mean by development. In no music worthy of the name is development an artificial, intellectual process; it is simply the germination of the theme-seeds. As it results, however, in constantly increasing complexity, it would quickly confuse the listener were it not judiciously combined with simple repetitions of the original ideas, serving both to mark the completion of one cycle of development and sometimes to initiate a new one. The recapitulations insure the unity of the impression as a whole made by the work of art; the developments give it the richness and variety inseparable from all life.

The many special musical forms of which the student will read are merely so many clearly defined combinations of these three processes. Thus in the minuet, for example, a comparatively primitive form, there is one theme, expounded, developed, and recapitulated, and in the second part called trio, a second theme treated exactly the same way. In the ‘Song form’ so called, used for slow movements of sonatas and symphonies, there is usually an exposition of a theme, a slight development, and an ornamented or otherwise varied repetition; then, without any complete stop, a contrasting theme, treated much the same way; finally, a return of the main theme, either treated as at first or somewhat more briefly. Sometimes there is a short coda (concluding section) with further slight development of one or both themes.

The sonata form, as we have already seen, is distinguished from both these more rudimentary types by having two themes of almost equal importance—sometimes three. These contrast with each other in expression, rhythm, and what is called ‘key.’ Their development is extended and occupies the entire middle part of the piece. They are regularly recapitulated much as at first, but now both in the same ‘key,’ and may be followed by a coda, which with Beethoven assumes sometimes almost the importance of a second development. In the rondo there is a constant alternation between a main theme and other secondary themes or sections of development.

Thus in all the special forms we find but different applications of the three fundamental processes of exposition, development, and recapitulation, much as all plants go through the necessary cycle of seeding, growth, and blossoming. The more the music of the great symphonic masters is studied the more marvellous will the reader find the mingling of ingenuity and simplicity with which they know how to marshal their thoughts. Such study makes listening no longer a passive or even wearisome process, but the most fascinating reliving of a spiritual life as many-sided, as infinitely various, as filled with beauty, as that of Nature herself.