THE SOUND OF CALABASH.
The calabash is a gourd of pumpkin shape, but somewhat smaller. In the instrument which we are about to describe, we shall see that the calabash (called pao by the Chinese) really emits no sound, but serves only as an air reservoir for one of the most wonderful instruments of ancient times. The cheng, which is the only instrument in which the calabash is used, is in fact a portable organ, and when we consider that this intricate instrument was invented about four thousand years ago, we are lost in astonishment that the invention did not lead to greater results; yet the Chinese have frequently, in other sciences as well, advanced to the threshold of great discoveries.
We will not detail to the reader, all the legends, symbols, and mythology attached to the cheng; suffice it to say that animal, mineral and vegetable nature is represented by it, and that to each part of it is appended some mystical meaning. The gourd is pierced and cleaned, and an aperture made for the air to enter, then the ends of from thirteen to twenty-four pipes of bamboo are inserted into as many holes cut in the gourd; each of these pipes contains in it a tongue of copper or gold, the vibration of which causes the sound; beneath this is a hole cut in the bamboo, through which aperture the air rushes without giving any sound, but when the hole is stopped by pressing a finger upon it, the air having no other outlet, is forced up the pipe, and striking the metallic tongue, gives out an agreeable reed sound. A curved mouth-piece through which the performer is to blow, is introduced at the centre of the gourd. The cheng contains all the elements of the reed organ, and it would be a simple matter to produce harmonies with it, and yet with this instrument in the world for four thousand years, it remained for moderns (comparatively speaking,) to discover the art of combining different sounds; but the invention of so well-conceived a reed instrument in such remote ages, certainly entitles the ancient Chinese to the utmost respect of their unconscious imitators, the Europeans.