Theory and Practice of Just Intonation: With a View to the Abolition of Temperament is a book written by Thomas Perronet Thompson in 1850. The book explores the concept of just intonation, which is a tuning system based on the natural harmonics of sound. Thompson argues that this tuning system is superior to the commonly used tempered tuning system, which is based on dividing the octave into twelve equal parts. The book begins with a historical overview of tuning systems and their development over time. Thompson then delves into the theory behind just intonation, explaining how it works and why it is a more harmonious system than temperament. He provides practical examples of how to use just intonation in music composition and performance, including suggestions for tuning instruments and adjusting vocal techniques.Thompson also discusses the potential benefits of adopting just intonation as the standard tuning system, including improved sound quality, greater musical expression, and a deeper connection to the natural world. He argues that the use of temperament is a barrier to achieving these benefits and that the time has come to abolish it in favor of just intonation.Overall, Theory and Practice of Just Intonation is a comprehensive exploration of a complex and fascinating topic. It is a must-read for anyone interested in music theory, composition, or performance, as well as for those interested in the history and philosophy of music.As Illustrated By The Description And Use Of The Enharmonic Organ.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.