The intricacies of chord theory can be intimidating to the average musician. In this book, author David Pearl breaks down the following topics in an easy-to-understand way: intervals · chord qualities and functions · power chords, triads and seventh chords · chord extensions · modulation and transposition · song forms · and advanced chord types. All of these concepts are further demonstrated using popular songs, some of which include Hallelujah by Leonard Cohen, Pinball Wizard by The Who, Superstition by Stevie Wonder, Yesterday by The Beatles and many more.