Watch the Chords in Open A online guitar lesson by Andy Aledort from Slide Guitar Power

Before examining scale patterns for slide soloing in an open A tuning, let's look at the open A chord forms that are used most often. The best place to start is the the I-IV-V (one-four-five) chords as used in a standard 12-bar blues in the key of A, so the standard chord forms for the four chord, D, and the five chord, E, are demonstrated here.