: Derives the entire harmonic system (chords and modes) from first principles.
: Introduced the idea that every chord has a "root" note, regardless of how the other notes are arranged. Treatise on Harmony
: 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: : Derives the entire harmonic system (chords and
