EGS Lesson Eight Developing strumming and chord changes
Figure 1. Strumming using up and down-strokes (Enlarge)
Notice which bass note is played in each chord. The third lowest string is the D string (4th string), and so we strum the chord of D from the open D string.
The second lowest string on the guitar is the A string (5th string), and so we strum the chord of A from the open A string.
The lowest string on the guitar is the E string (6th string ), and so we strum the chord of E from the open E string.