bass fret walk preview
G |--------------------1-2-3--3-2-1-------------------|
D |--------------1-2-3--------------3-2-1-------------|
A |--------1-2-3--------------------------3-2-
say it aint so preview
G ||-----------|-----------|-----------|-----------|-----------|-----|
D ||-----4-5-6-|-----------|-----4-5-6-|-----------|-----4-5-6-|-----|
A ||-4---------|