Tabbed by the Bass Supreme, Archer Johnson.

~ = Vibrato
h = Hammer on
p = Pull off

  ~~~~~Intro ? 0:00 / 5:10~~~~
G|---------------------------------|
D|---------------------------------|
A|--10--9--8--7----5--4--3--2--|
E|0--------------0-----------------|

Replace that final 2 on the A string with two 0's on the E string on the fourth run through.

Later, that 2 will be replaced by this.

  (4x) ? 1:12
G|----------2h4-----|
D|------2h4----2h4|
A|2-2-2------------|
E|-------------------|

Solo - 2:05
G|----------------|------------------------------------------------------------------------------------------------
D|--------5555--|7777--5555-----------5555--7777--9999--7777--5555-----------5555--9999--7777-
A|77775-------7|------7------7--77775------7------7------7-------7-------7--55555-----7-------7-------7-
E|----------------|--------------------------------------------------------------------------------------------------

-------------------------------------------------------------------------------------------|
----------5555--7777--9999--7777--5555--5555--7777--9999--7777--9999---|
--55555-------5------5------7------7-------7------7-------7------7-------7------7--|
-------------------------------------------------------------------------------------------|

3:00
G|7--------9-------7-----------9-9----7-----------9-9-----7---------------------------------------
D|-757-----979-----757-----9----9----757----9-----9-----757-----33333---33333---33333-
A|------5--------7--------5-7----------------5-7-----------------5---------------------------------
E|-----------------------------------------------------------------------------------------------------

-------------|
33333---2-|
-------------|
-------------|

(57x) ? 3:29
G|-----------|
D|------5h7p5|
A|---5h7-----|
E|5h7--------|


   (3x) ? 4:47                   (4x) ? 5:02 / 5:44
G|--------------0---|---------2h4---|
D|2---0-----2-------|------2h4---2h4|
A|------0-----------|2-2-2----------|
E|------------------|---------------|

Return to verse.

  Outro ? 5:52
G|------------------------7777----99997-------9-7\--------9-7\--------9-7\--------------
D|--------77775---99997-------9---------------------------------------------------------
A|77775-----------------------------------5---------7-5---------7--7--------55555-55555-
E|--------------------------------------------------------------------------------------

----------------------------------------------------|
----------------------------------------------------|
55555-55555-55555-55555-55555-55557--|
----------------------------------------------------|

Yeah it?s probably wrong but it?s Led Zeppelin for Christ sakes. Improvise!!!!!!!!