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 harmonic series, as opposed to the tempered tuning system that is commonly used in Western music today. Thompson argues that just intonation is a superior tuning system, as it allows for a more pure and harmonious sound...