A Treatise Of The Natural Grounds, And Principles Of Harmony is a book written by William Holder and published in 1731. The book delves into the fundamental principles of harmony in music, exploring the natural laws and principles that govern the relationships between musical sounds. Holder examines the properties of sound waves, the mathematical ratios that underlie musical intervals, and the ways in which these ratios can be combined to create harmonious music. He also discusses the historical development of musical theory and the various systems of notation used to represent musical ideas. The book is written in a clear and accessible style, making it an excellent resource for students of music theory and anyone interested in the science of sound and music. Overall, A Treatise Of The Natural Grounds, And Principles Of Harmony is a comprehensive and insightful exploration of the principles of harmony, offering valuable insights into the nature of music and the ways in which it is created and understood.To Which Is Added, An Appendix.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.