Here I've tabbed Russell's guitar part in Day Four.


Part I - Palm Muted.
E|--------------------------------|--------------------------------|
B|--0-----0-----0-----0-----0-----|--0-----0-----0-----0-----0-----|
G|----5-----5-----5-----5-----5---|----2-----2-----2-----2-----2---|
D|5-----5-----5-----5-----5-----5-|2-----2-----2-----2-----2-----2-|
A|--------------------------------|--------------------------------|
E|--------------------------------|--------------------------------|x4

Part II
E|--------------------------------|--------------------------------|
B|--------------------------------|--------------------------------|
G|--------------------------------|--------------------------------|
D|--2-4---2-4---2---4-5---4-5---4-|--5-7---5-7---5---7-9---7-9---7-|
A|2-----2-----2---3-----3-----3---|5-----5-----5---7-----7-----7---|
E|--------------------------------|--------------------------------|x1

E|--------------------------------|--------------------------------|
B|--------------------------------|--------------------------------|
G|--------------------------------|--------------------------------|
D|--2-4---2-4---2---4-5---4-5---4-|--5-7---5-7---5---5-7---5-7---5-|
A|2-----2-----2---3-----3-----3---|5-----5-----5---5-----5-----5---|
E|--------------------------------|--------------------------------|x1

Part III - Not Palm Muted.
E|3-2---3-2---3-2---3-2---3-2---3-|2---3-2---3-2---3-2---3-2---2-3-|
B|----3-----3-----3-----3-----3---|--3-----3-----3-----3-----3-----|
G|--------------------------------|--------------------------------|
D|--------------------------------|--------------------------------|
A|--------------------------------|--------------------------------|
E|--------------------------------|--------------------------------|x1

E|5-2---5-2---5-2---5-2---5-2---2-|5-3---5-3---5-3---5-3---7-5-2-3-|
B|----3-----3-----3-----3-----3---|----3-----3-----3-----3---------|
G|--------------------------------|--------------------------------|
D|--------------------------------|--------------------------------|
A|--------------------------------|--------------------------------|
E|--------------------------------|--------------------------------|x1

E|3-2---3-2---3-2---3-2---3-2---3-|2---3-2---3-2---3-2---3-2---2-3-|
B|----3-----3-----3-----3-----3---|--3-----3-----3-----3-----3-----|
G|--------------------------------|--------------------------------|
D|--------------------------------|--------------------------------|
A|--------------------------------|--------------------------------|
E|--------------------------------|--------------------------------|x1

E|5-2---5-2---5-2---5-2---5-2---2-|5-3---5-3---5-3---5-3---8-7-5-3-|
B|----3-----3-----3-----3-----3---|----3-----3-----3-----3---------|
G|--------------------------------|--------------------------------|
D|--------------------------------|--------------------------------|
A|--------------------------------|--------------------------------|
E|--------------------------------|--------------------------------|x1

Part IV - I can't really tell if this is two guitar parts or one,
But it sounds fine when played like this.
E|--------------------------------|--------------------------------|
B|--------------------------------|--------------------------------|
G|0---------------0---------------|----------------0---------------|
D|--------------------------------|4-------------------------------|
A|--2-2-2-2-2-2-2---3-3-3-3-3-3-3-|--5-5-5-5-5-5-5---7-7-7-7-7-7-7-|
E|--------------------------------|--------------------------------|x1

E|--------------------------------|--------------------------------|
B|3---------------3---------------|3---------------5---------------|
G|--0-0-0-0-0-0-0---2-2-2-2-2-2-2-|--4-4-4-4-4-4-4---5-5-5-5-5-5-5-|
D|--------------------------------|--------------------------------|
A|--------------------------------|--------------------------------|
E|--------------------------------|--------------------------------|x1

E|3---------------5---------------|7---------------8----------------------|
B|--3-3-3-3-3-3-3---7-7-7-7-7-7-7-|--8-8-8-8-8-8-8---10-10-10-10-10-10-10-|
G|--------------------------------|---------------------------------------|
D|--------------------------------|---------------------------------------|
A|--------------------------------|---------------------------------------|
E|--------------------------------|---------------------------------------|x1

E|10----------------------12----------------------|
B|---12-12-12-12-12-12-12----13-13-13-13-13-13-13-|
G|------------------------------------------------|
D|------------------------------------------------|
A|------------------------------------------------|
E|------------------------------------------------|x1

E|14----------------------15----------------------|
B|---15-15-15-15-15-15-15----17-17-17-17-17-17-17-|
G|------------------------------------------------|
D|------------------------------------------------|
A|------------------------------------------------|
E|------------------------------------------------|x1

Part V
E|---19-------19-------19-------19----|
B|------20-------20-------20-------20-|
G|17-------17-------17-------17-------|
D|------------------------------------|
A|------------------------------------|
E|------------------------------------|x4

E|---19-------19-------19-------19----|
B|------20-------20-------20-------20-|
G|19-------19-------19-------19-------|
D|------------------------------------|
A|------------------------------------|
E|------------------------------------|x4

This can also be played like:
E|---19p15----19p15----19p15----19p15-|
B|------------------------------------|
G|17-------17-------17-------17-------|
D|------------------------------------|
A|------------------------------------|
E|------------------------------------|x4

E|---19p15----19p15----19p15----19p15-|
B|------------------------------------|
G|19-------19-------19-------19-------|
D|------------------------------------|
A|------------------------------------|
E|------------------------------------|x4