The Science of Musical Sounds, J. Sundberg,
(Academic, San Diego, 1989).
The Science of Sound, T.D. Rossing, (Addison-Wesley,
Reading, Mass, 1982).
Rossing's book (above) is designed for readers who have
no training in physics or maths and so it includes easy-to-follow
appendices on some relevant areas of mathematics and physics.
We are often asked if there are books that are suitable
for musicians who really want to avoid technical language
and equations completely. For this purpose, we recommend the introductory level of Jim Woodhouse's Euphonics site, linked above, or Howard Pollard's books, in which equations never