(Explained). 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.