Watch the Half Stepping online guitar lesson by David Hamburger from 30 Beginner Fingerstyle Blues Licks You MUST Know

The 7th chord in this lick is one of the foundational voicings of country blues, a bit of musical DNA clearly traceable from the songs of Robert Johnson through those of Muddy Waters, Jimi Hendrix, and beyond. No pressure, man. The half-step move dropping our three-note E7 chord down a fret turns that chord into an E diminished voicing, a downright jazzy bit of knowledge you might park in the back of your mind for future reference.