10: Guitar chord progression: A-key I-V
Step1. Press the A Maj finger positions.
Step 2. Remove the first finger and press the 3rd string 1 fret with 1st finger.
Step 3. Remove the 2nd finger and the 3rd finger at the same time, the 2nd finger will press the 5th string 2 fret, and the 3rd finger will press the 4th string 2 fret. (E Maj)