riff 1 (x4):
E|----------------|
B|----------------|
G|----------------|
D|----------------|
A|-0---2----------|
E|----------------|

riff 2 (x4):
E|------------------------------------------------------|
B|------------------------------------------------------|
G|------------------------------------------------------|
D|-2---0-------2---0------------------------------------|
A|--------------------------2------0----2-------0----2--|
E|------------------------------------------------------|

riff 3 Gtr 1 (until the end):
E|-10--8------5---7-----5-------10------8------5--7----5--3-------|
B|-8---8------5---5-----5-------8-------8------0--0----0--0-------|
G|-0---0------0---0-----0-------0-------0------0--0----0--0-------|
D|---------------------------0-------0----------------------------|
A|----------------------------------------------------------------|
E|----------------------------------------------------------------|

riff 3 Gtr 2 (It's not exactly what Halstead plays because this guitar
sounds on the background) (until the end):

E|----------------------------------------|
B|------3-----1-----0------1-----0--------|
G|--------0-----0-----0------0-----0------|
D|----2-----2-----2-----2------2-----2----|
A|--3-------------------------------------|
E|----------------------------------------|

E|----------------------------------------|
B|-----3-----1-----0-----1------0---------|
G|-------0-----0-----0-----0------0-------|
D|---0-----0----0------0-----0-----0------|
A|----------------------------------------|
E|-3--------------------------------------|