One of most important books in Western music. Detailed explanation of principles of diatonic harmonic theory. New 1971 translation by Philip Gossett of 1722 edition. Many musical examples. New 1971 translation by Philip Gossett of 1722 edition.
Guide to the Practical Study of Harmony by Peter Ilyitch Tchaikovsky Written during Tchaikovsky's years as professor at the Moscow Conservatory, this clear and thorough introduction to the study of harmony features numerous examples and exercises.
Tuning and Temperament: A Historical Survey by J. Murray Barbour This classic chronicle of the longstanding challenges of tuning and temperament devotes a chapter to each principal theory, features a glossary and numerous tables, and requires only minimal background in music theory.
Modulation by Max Reger Written by a progressive early modernist, this concise guide for performers and composers offers valuable insights and instruction. Suitable for musicians at all levels. Newly typeset and engraved.