Generally, rockabilly makes heavy use of the well-known I-IV-V blues progression. In the key of E the chords are E-A-B; in the key of A it's A-D-E, and 6th, 7th and 9th versions of these major chords ...

To avoid sounding the idle sixth string when you play this chord, bring your thumb around the back of the neck so that the tip of it just touches the string. This is a useful blues shape that can ...