After the riff, the verse sections begin, which Shadwick describe as "simplicity itself, consisting of just three chords": E79, G, and A. The E79, or dominant seventh sharp ninth chord, has come to be called the "Hendrix chord" by guitarists and was used primarily in rhythm and blues and jazz before Hendrix helped popularize it. He also used an unconventional fingering technique for the G and A chords. Because Hendrix used his thumb to fret the roots of the G and A chords on the sixth string, his fingers were left in a position to create different chord voicings. Instead of the usual G barre chord (G–B–G–B–D–G), a G5 (G–X–G–G–D–G) is sometimes played with the major third (B) being muted on the fifth string and replaced by the open third string (G). Redding follows the chord changes mostly by playing the root with occasional passing notes, while Mitchell heightens the tension with drum flourishes that accentuate Hendrix's vocal and guitar.