As a rule, the left thumb stays on the back of the guitar neck, positioned behind the fingers. The pad — not the tip — touches the guitar. Like the right thumb, the tip joint stays straight (or rather, we don't bend it).
As a rule, the left thumb stays on the back of the guitar neck, positioned behind the fingers. The pad — not the tip — touches the guitar. Like the right thumb, the tip joint stays straight (or rather, we don't bend it).