Practical Instructions in Harmony, upon the Pestalozzian or Inductive System is a book written by the Swiss educator Johann Heinrich Pestalozzi in 1854. The book is a comprehensive guide to teaching music theory and harmony using the Pestalozzian or Inductive System, a method of teaching that emphasizes hands-on, experiential learning.The book is divided into four parts, each of which covers a different aspect of music theory and harmony. Part One...