Ernst Levy was a visionary Swiss pianist, composer, and teacher who developed an approach to music theory that has come to be known as "negative harmony." Levy's theories have had a wide influence, from young British performer/composer Jacob Collier to jazz musicians like Steve Coleman. His posthumous text, A Theory of Harmony, summarizes his innovative ideas. A Theory of Harmony is a highly original explanation of the harmonic language of the modern era, illuminating the approaches of diverse styles of music. By breaking through age-old conceptions, Levy was able to reorient the way we experience musical harmony. British composer/music pedagogue Paul Wilkinson has written a new introduction that offers multiple points of entry to Levy’s work to make this text more accessible for a new generation of students, performers, and theorists. He relates Levy's work to innovations in improvisation, jazz, twentieth-century classical music, and the theoretical writings of a wide range of musical mavericks, including Harry Partch, Hugo Riemann, and David Lewin. Wilkinson shows how A Theory of Harmony continues to inspire original musical expression across multiple musical genres.

A well-used general text, this book covers material from figured bass to contemporary practices and ideas in a two-year course. There is a particularly strong chapter on ear training. Organizing progress of study is expedited by having both workbook and text under the same cover.

(Musicians Institute Press). This book is a step-by-step guide to Musicians Institute's well-known Harmony and Theory class. It includes complete lessons and analysis of: intervals, rhythms, scales, chords, key signatures; transposition, chord inversions, key centers; harmonizing the major and minor scales; and more!

(Music Sales America). The ultimate compact reference book of theory and harmony. Contains essential, basic information relating to all aspects of music rudiments, counterpoint, harmony and orchestration. An excellent guide for both amateur, and professional musicians.

"This is a very comprehensive text that combines theory, harmony and voicing material with emphasis placed on voice leading. Although this book's primary focus is on four-note chord voicings on the middle strings of the guitar, much of the knowledge conveyed here can be appreciated and used by all jazz musicians, not only guitarists. Topics covered include: Tensions, Voice Leading Chord Scales, Enharmonic Chordal Substitutions, Fourth Voicings, Chromatic Guide Lines, Triad Over Bass Voicings, and much more! The best part of this book, however, is the unique and practical way the author takes modern harmonic concepts and shows you how to apply them in real music situations! Written for the intermediate to advanced music theory enthusiast who wishes to master this facet of music."

This book is Schoenberg's last completed theoretical work and represents his final thoughts on the subject of classical and romantic harmony. The earlier chapters recapitulate in condensed form the principles laid down in his 'Theory of Harmony'; the later chapters break entirely new ground, for they analyze the system of key relationships within the structure of whole movements and affirm the principle of 'monotonality, ' showing how all modulations within a movement are merely deviations from, and not negations of, its main tonality.