I found this song on an album called "Beyond Mississippi" Various Artists
Open G tuning: DGDGBD
Thumb plays alternating bass and is damped by palm muting.
h=hammer on
s=slide
Riff.1
h h
D|0/3---5-----5-----3---3/5-------|
B|--------------------------------|
G|--------------------------------|
D|5-------5-------5-------5-------|
G|----0-------0-------0-------0---|
D|--------------------------------|