Treatise On Harmony Direct

Focuses on 19th-century thought, available at Barnes & Noble ($22.95). Treatise on Harmony - Dover Publications

: Covers the mathematical relationships between sounds and intervals. Treatise on Harmony

Modern editions of Rameau's work and other famous harmony treatises are available from major retailers. (Jean-Philippe Rameau) Revised edition by Dover Publications ($21.95). Also available at Books A Million ($21.95). Alfred Day's Treatise on Harmony (1845) Focuses on 19th-century thought, available at Barnes &

: Provides practical rules for composition, such as chord progressions. Focuses on 19th-century thought