The necessity of acquiring some knowledge of the principles of mechanics before proceeding to the study of scale design is admitted. Such knowledge, together with that of the principles of the acoustics as they apply to musical sounds produced by vibrating strings, is essential to a correct understanding of the fundamental ideas underlying true pianoforte design.
To know a piano accurately one must understand the laws governing tone quality, and how the propagation and transmission of sound is produced as well as the pitch and intensity of sound. And there are thousands of men to-day in the various factories who are anxious to obtain sources of information from which to gain a more correct knowledge of a profession which should take high rank among industrial pursuits.
Owing to the gradual changes which have been wrought in all industries through the abandonment of the apprentice system, there is more need for instruction books than ever before.
A factory operative, according to the present plan, may know thoroughly but one department of the business, but he can become more useful to himself and his employers when he possesses a knowledge of all branches. In the piano trade particularly there must be a correct knowledge of piano building, else there can be no advance, and with our old piano makers rapidly passing away there is need for a healthy school of new inventors, so that wherever possible, improvements may be made and defects remedied. These can only be accomplished by the possession of a knowledge of all the intricate principles involved in piano making.
We feel that in presenting a work of this kind we are offering a volume which will meet with the approval of those who seek knowledge, for while there are great trade and technical schools which are the fountains of inspiration for various trades, the science of piano making is not included as a branch in any of them. It is therefore evident that knowledge must be gained outside, for piano schools there are none. To every mind seeking information there should be knowledge given, and we believe that a work of this kind must be of value to an industry wherein there is such a dearth of reliable text books.
It will be seen by examination that all of the practical problems which are to be considered by the scale draughtsmen have been fairly treated in this volume and yet the desire of the author has been throughout to avoid tiresome details. Condensation is one of the recognized laws of our day, and in producing this technical work the author has labored to create a volume of convenient size which shall be of service to the student, and to the advanced thinker as well, on account of the accuracy with which the subjects are treated.