Handel's "Pastoral Symphony."
The word symphony has itself a singularly variegated history. Like many another term in music it was borrowed by the modern world from the ancient Greek. To those who coined it, however, it had a much narrower meaning than to us who use it, with only a conventional change in transliteration, now. By συμφωνια the Greeks simply expressed the concept of agreement, or consonance. Applied to music it meant first such intervals as unisons; then the notion was extended to include consonant harmonies, such as the fifth, fourth, and octave. The study of the ancient theoreticians led the musicians of the Middle Ages to apply the word to harmony in general. Then in some inexplicable fashion it came to stand as a generic term for instrumental compositions such as toccatas, sonatas, etc. Its name was given to one of the precursors of the pianoforte, and in Germany in the sixteenth century the word Symphoney came to mean a town band. In the last century and the beginning of this the term was used to designate an instrumental introduction to a composition for voices, such as a song or chorus, as also an instrumental piece introduced in a choral work. The form, that is the extent and structure of the composition, had nothing to do with the designation, as we see from the Italian shepherds' tune which Handel set for strings in "The Messiah;" he called it simply pifa, but his publishers called it a "Pastoral symphony," and as such we still know it. It was about the middle of the eighteenth century that the present signification became crystallized in the word, and since the symphonies of Haydn, in which the form first reached perfection, are still to be heard in our concert-rooms, it may be said that all the masterpieces of symphonic literature are current.
The allied forms.
Sonata form.
Symphony, sonata, and concerto.
I have already hinted at the fact that there is an intimate relationship between the compositions usually heard at a classical concert. Symphonies, symphonic poems, concertos for solo instruments and orchestra, as well as the various forms of chamber music, such as trios, quartets, and quintets for strings, or pianoforte and strings, are but different expressions of the idea which is best summed up in the word sonata. What musicians call the "sonata form" lies at the bottom of them all—even those which seem to consist of a single piece, like the symphonic poem and overture. Provided it follow, not of necessity slavishly, but in its general structure, a certain scheme which was slowly developed by the geniuses who became the law-givers of the art, a composite or cyclical composition (that is, one composed of a number of parts, or movements) is, as the case may be, a symphony, concerto, or sonata. It is a sonata if it be written for a solo instrument like the pianoforte or organ, or for one like the violin or clarinet, with pianoforte accompaniment. If the accompaniment be written for orchestra, it is called a concerto. A sonata written for an orchestra is a symphony. The nature of the interpreting medium naturally determines the exposition of the form, but all the essential attributes can be learned from a study of the symphony, which because of the dignity and eloquence of its apparatus admits of a wider scope than its allies, and must be accepted as the highest type, not merely of the sonata, but of the instrumental art. It will be necessary presently to point out the more important modifications which compositions of this character have undergone in the development of music, but the ends of clearness will be best subserved if the study be conducted on fundamental lines.
What a symphony is.
The bond of unity between the parts.
The symphony then, as a rule, is a composition for orchestra made up of four parts, or movements, which are not only related to each other by a bond of sympathy established by the keys chosen but also by their emotional contents. Without this higher bond the unity of the work would be merely mechanical, like the unity accomplished by sameness of key in the old-fashioned suite. (See [Chapter VI].) The bond of key-relationship, though no longer so obvious as once it was, is yet readily discovered by a musician; the spiritual bond is more elusive, and presents itself for recognition to the imagination and the feelings of the listener. Nevertheless, it is an element in every truly great symphony, and I have already indicated how it may sometimes become patent to the ear alone, so it be intelligently employed, and enjoy the co-operation of memory.
The first movement.