All these have been retained in the modern opera, which may be said to differ chiefly from its ancient model in the more important and more independent part which music plays in it. It will appear later in our study that the importance and independence achieved by one of the elements consorted in a work by nature composite, led the way to a revolution having for its object a restoration of something like the ancient drama. In this ancient drama and its precursor, the dithyrambic song and dance, is found a union of words and music which scientific investigation proves to be not only entirely natural but inevitable. In a general way most people are in the habit of speaking of music as the language of the emotions. The elements which enter into vocal music (of necessity the earliest form of music) are unvolitional products which we must conceive as co-existent with the beginnings of human life. Do they then antedate articulate speech? Did man sing before he spoke? I shall not quarrel with anybody who chooses so to put it.
Physiology of singing.
Think a moment about the mechanism of vocal music. Something occurs to stir up your emotional nature—a great joy, a great sorrow, a great fear; instantly, involuntarily, in spite of your efforts to prevent it, maybe, muscular actions set in which proclaim the emotion which fills you. The muscles and organs of the chest, throat, and mouth contract or relax in obedience to the emotion. You utter a cry, and according to the state of feeling which you are in, that cry has pitch, quality (timbre the singing teachers call it), and dynamic intensity. You attempt to speak, and no matter what the words you utter, the emotional drama playing on the stage of your heart is divulged.
Herbert Spencer's laws.
The man of science observes the phenomenon and formulates its laws, saying, for instance, as Herbert Spencer has said: "All feelings are muscular stimuli;" and, "Variations of voice are the physiological results of variations of feeling." It was the recognition of this extraordinary intimacy between the voice and the emotions which brought music all the world over into the service of religion, and provided the phenomenon, which we may still observe if we be but minded to do so, that mere tones have sometimes the sanctity of words, and must as little be changed as ancient hymns and prayers.
Invention of Italian opera.
Musical declamation.
The end of the sixteenth century saw a coterie of scholars, art-lovers, and amateur musicians in Florence who desired to re-establish the relationship which they knew had once existed between music and the drama. The revival of learning had made the classic tragedy dear to their hearts. They knew that in the olden time tragedy, of which the words only have come down to us, had been musical throughout. In their efforts to bring about an intimacy between dramatic poetry and music they found that nothing could be done with the polite music of their time. It was the period of highest development in ecclesiastical music, and the climax of artificiality. The professional musicians to whom they turned scorned their theories and would not help them; so they fell back on their own resources. They cut the Gordian knot and invented a new style of music, which they fancied was like that used by the ancients in their stage-plays. They abolished polyphony, or contrapuntal music, in everything except their choruses, and created a sort of musical declamation, using variations of pitch and harmonies built up on a simple bass to give emotional life to their words. In choosing their tones they were guided by observation of the vocal inflections produced in speech under stress of feeling, showing thus a recognition of the law which Herbert Spencer formulated two hundred and fifty years later.
The music of the Florentine reformers.
The solo style, harmony, and declamation.