The open strings form a G chord ... ‘slack key’ and bottleneck blues. Here are five chord shapes you need to learn in open G tuning. With its G-G-G-D-D arrangement of notes, this first ...

Once you've whetted your appetite for open tuning experimentation ... we’re moving the shape on the fifth and second strings. If we barre across the top five strings at the 7th fret, a large ...