Harmonograph: A Visual Guide to the Mathematics of Music
Anthony Ashton
Product Description
This elegant little book is an introduction to the evolution of harmonic theory. We are shown the octave as a triangle, the fifth as a pentagram, and diagrams reveal the principles of harmonics, overtones, and the monochord. The drawings are produced by the harmonograph, a popular Victorian scientific instrument.
Wooden Books, hardcover, 2003, 58 pages