Treatise On Harmony -

: Provides practical rules for composition, such as chord progressions.

: Explained that a chord remains the same "identity" even if the root is not the lowest note. 📖 Structure of the Treatise The book is divided into four distinct sections: Treatise on Harmony

Rameau’s work established the bedrock of Western tonal music for over two centuries. : Provides practical rules for composition, such as

: Argued that harmony is derived from natural laws, specifically string vibrations and the overtone series. : Provides practical rules for composition

: Defined the three-note triad as the primary unit of harmony.