The open G7 chord shape (G dominant 7) involves playing the 3rd fret of the 6th string, as well as the 1st fret of the 1st string. This can be a difficult stretch at first. It is often paired with the standard open G chord. The image below contains the musical notation, chord chart, tabs and scale degrees for the open G7 chord.

How to play the open G7 chord
- Place your 3rd finger on the 3rd fret of the 6th string.
- Place your 2nd finger on the 2nd fret of the 5th string.
- Place your 1st finger on the 1st fret of the 1st string.
- Strum all six strings.
G dominant 7 (open chord shape) info
- This shape is and open chord, and the most common (and easiest) way to play the G7 chord.
- It contains the notes (from the 6th string down) G, B, D, G, B and F.
- It contains the 1 (root), 3, 5, 1, 3 and b7 in the key of G.
- It is a Dominant 7 chord.