Led Zeppelin: Babe I’m Gonna Leave You
Musician: John Paul Jones

Main Riff:
G|--------------------------|
D|--------------------------|
A|--12-12—-10-10-—9-9—-8-7--|
E|--------------------------|
                         6x
G|---------------|
D|---------------|
A|--8-------8----|
E|-----12-----12-|
                    
G|--------------------------|
D|--------------------------|
A|--12-12—-10-10—-9-9—-8-7--|
E|--------------------------|

Chorus:
G|--------------------------------|
D|--------------------------------|
A|------------3—-5—5-5-5-5-5-5-5--|
E|--5—5-5-5-5---------------------|

Fill Riff:
G|-------------------------------------------------------------------|
D|-------------------------------------------------------------------|
A|--12-12-12-12-12-12—-10-10-10-10-10-10-—9-9-9-9-9-9-—8-8-8-8-—7-7--|
E|-------------------------------------------------------------------|
                                                                  4x
G|---------------------------------|
D|---------------------------------|
A|--8-8-8-8-8-8--------------------|
E|--------------12-12-12-12-12-12--|
                                 2x
Fill Riff #2:
G|---------------------------------------------------|
D|---------------------------------------------------|
A|--12-12-12-12-12-12-12-12-12-12-12-12-12-12-12-12--|
E|---------------------------------------------------|

Progression:
Main Riff
Chorus
Main Riff
Chorus
Fill Riff #2
Fill Riff
Chorus
Main Riff
Fill Riff (without the second part (the 8-12) and only twice)
Main Riff (without the second part (the 8-12) and only four times)
Fill Riff (without the second part) until the end 

It’s not totally perfect, some of the small fills are missing, but this ought to get you started.