Key:

H = Hammer On
v = vibrato (but only use mild vibrato for this song)

I worked out the main riff by ear and watched a cover of the song on youtube to try and
transcribe the bridge section.
I am certain that the main riff is 100% correct and the bridge section also seems accurate.

Main Riff

G| --------------------------------------------------------------|
D| -------------------------------2--3--4------------------------|
A| ----------5--4-----------V5-----------------------------------|
E| --0--H2----------0--H2----------------------------------------|

Alternative Main Riff

G| ----------------------------------------------------------------|
D| ----------------------------------------------------------------|
A| ----------5--4-----------V5-----7--8--9-------------------------|
E| --0--H2----------0--H2------------------------------------------|

Note: The main riff is played once and is followed by a slide each time. The slides are
on the a and e strings, and sometimes on the d string as well.
It is best to improvise these slides, but they work best around the 12th to 15th fret
areas and then slid back up.

Bridge Section

G| --7-------------5---------2-3-2-3-2-3-2-3-2-3-2-3-2---------------2--|
D| ----7-----5--7-----7----------------------------------5--4--2--0-----|
A| ------5--------------5-----------------------------------------------|
E| ---------------------------------------------------------------------|

Note: The Section of the bridge from 2-3-2-3 onwards is played very fast.

End of bridge section (part which connects the bridge and verse again:

G| --2-3-2-3-2-3-2-3-2-3------------------------------------------------|
D| ----------------------V2---------------------------------------------|
A| ---------------------------------------------------------------------|
E| ---------------------------------------------------------------------|

Giddens UK