This book is far and away the best book I've ever found on sound, vibration and music. Nothing else comes close. While there are some few discrepancies as concerns theory but these are overshadowed by the factual presentations on sound and vibration basics, music, harmonic generation and development, harmony vs discord, music theory and countless other specifics. Each chapter has a self-test. Perfect bound reproduction of the original 1903 5th edition. Profusely illustrated, 312 pages, 8 1/2" X 11", Perfect Binding.