The circle of fifths is an invaluable tool that reveals important relationships between pitches and organizes them in a way that’s very useful to understanding diatonic harmony.
In this lesson we’re going to dive into the ever popular C major scale. This scale is very common and is used as the key center of countless songs. It’s happy sounding scale and typically one of the first scales guitar players learn.
Below is a guitar chord key chart the major and minor keys. A chord key chart outlines the diatonic chords, or the chords that naturally occur in a given key. Chord charts are useful when trying to figure out the key of a song.
Chords within a given key have a function, or role they play within the key. Understanding these chord functions can help you understand why some chord progressions sound good while others sound not so good.