‹‹‹ Vitr. 10.8.5 | Table of Contents | Vitr. 10.9.1 ›››
6By the quick motion of the levers still compressing the air, it finds its way through the apertures of the stops, and fills the channels with wind. Hence, when the keys are touched by hand, they propel and repel the rules, alternately stopping and opening the holes, and producing a varied melody founded upon the rules of music. I have done my utmost to give a clear explanation of a complex machine. This has been no easy task, nor, perhaps, shall I be understood, except by those who are experienced in matters of this nature. Such, however, as comprehend but a little of what I have written, would, if they saw the instrument, be compelled to acknowledge the skill exhibited in its contrivance.
6So, when the keys, touched by the hand, drive the sliders forward and draw them back regularly, alternately stopping and opening the holes, they produce resonant sounds in a great variety of melodies conforming to the laws of music.
With my best efforts I have striven to set forth an obscure subject clearly in writing, but the theory of it is not easy, nor readily understood by all, save only those who have had some practice in things of this kind. If anybody has failed to understand it, he will certainly find, when he comes to know the thing itself, that it is carefully and exquisitely contrived in all respects.