First guitar comes in...
E|-------|--------------------------------------------------|
B|-------|--------------------------------------------------|
G|-------| o------------------------------------------------o|
D|-13-\--| o------------------------------------------------o|
A|-11-\--|--------------------------------------2~--4~------|
E|-------|---2h4-4-4---4-2h4-4-4---4-2h4-4-4--4-------------|

We do that, and a second guitar slides in doing the same thing, and then
we have a third guitar with the main harmony:

E|---------------------------------------------------|
B|---------------------------------------------------|
G|---------8~----------------------8-----------------|
D|----9h11-----11-9/11\9------9h11----11-9h11p9------|
A|-11----------------------11-------------------11---|
E|---------------------------------------------------|

E|-----------------------------------------------------------|
B|-----------------------------------------------------------|
G|---------8---------------------------8--11-----------------|
D|----9h11----11--9--11p9---------9h11-------11--9h11p9------|
A|-11---------------------11---11-----------------------11---|
E|-----------------------------------------------------------|

E|---------------------------------------------------|
B|-----------------9~-------------9------------------|
G|---------8--11-8----11---8h11p8---11---------------|
D|----9h11-----------------------------11-9h11p9-----|
A|-11--------------------------------------------11--|
E|---------------------------------------------------|

E|------------------------------------------------------------------|
B|------------------------------------------------------------------|
G|---------8--11----------------------------------------------------|
D|----9h11-------11--9-11--9h11p9--------9h11-11'-11'-11'-9h11p9----|
A|-11-----------------------------11--11-------------------------11-|
E|------------------------------------------------------------------|

E|----------------------------------------|
B|----------------------------------------|
G|---------11~---9-8----------8~----------|
D|----9h11-----------11--11p9----11~-9~---|
A|-11-------------------------------------|
E|----------------------------------------|

E|----------------------------------------|
B|----------------------------------------|
G|------8--11~---9-8----------8~----------|
D|-9-11--------------11--11p9----11~-9~---|
A|----------------------------------------|
E|----------------------------------------|