Power chords are a type of movable guitar chord shape that contain only two notes. They can be thought of as a simpler 'watered down' version of a barre chord. These movable chords can be shifted around the fretboard to make countless other chords using the same fingerings.Power chords are a type of movable guitar chord shape that contain only two notes. They can be thought of as a simpler 'watered down' version of a barre chordbarre chordIn music, a barre chord (also spelled bar chord) is a type of chord on a guitar or other stringed instrument played by using one or more fingers to press down multiple strings across a single fret of the fingerboard (like a bar pressing down the strings).https://en.wikipedia.org › wiki › Barre_chordBarre chord - Wikipedia. These movable chords can be shifted around the fretboard to make countless other chords using the same fingerings.