Ian Johnston offers an informal historical approach that shows the evolution of both theory and application at the intersection of physics and music. Exceptionally accessible, insightful, and now updated to consider modern technology, the new edition of this critically acclaimed bestseller features a greater examination of psycho-acoustics and its role in the design of MP3s. It also includes expanded information on the gamelan and other Asian percussion instruments, and discusses binary notation, digitization, and electronic manipulation of music. A complementary website provides sound files, further reading, and instructional support.