In order to use chord substitution as a reharmonization technique, you must understand the division of the seven diatonic chords.

Suzanna Sifter is author of Berklee Jazz Keyboard Harmony: Using Upper Structure Triads, an extraordinary book that helps pianists organize and understand tensions

In jazz, you will encounter only seven kinds of diatonic seventh chords (from major, melodic minor, or harmonic minor keys). This article will show you how to voice lead smoothly and easily between these chords and their variations.

Jonathan Feist explains the concept of imaginary barlines in music theory, a notation convention designed to help the music reader know what’s syncopated.