here it is
e----------3--3--3--3--3--3--3--3---x3----------------------------|
b------3h5-3--3--3--3--3--3--3--3---------------------------------|
g--3h4------------------------------------------------------------|
d-----------------------------------------------------------------|
a-----------------------------------------------------------------|
E-----------------------------------------------------------------|
[ Tab from: http://www.guitaretab.com/l/led-zeppelin/40579.html ]
e----------3--3-3-------------------------------------------------|
b------3h5-3--3-3---6-6--6--5-------------------------------------|
g--3h4--------------5-5--5--5-------------------------------------|
d-------------------3-3--3--3-------------------------------------|
a-----------------------------------------------------------------|
E-----------------------------------------------------------------|
e--------------------------------------|
b----5--6--5-----3h5p3-----------------|
g----5--5--5-3h4------4p2p0------------|
d----3--3--3---------------------------|
a--------------------------------------|
E--------------------------------------|repeat
