No capo 
The riff is moving up and down on the top stringi.e. E F# G and 
then finishing with D# E (4th fret of the B string to open e) 
and a E to G on the E string for the low bit In general the riffs 
appear a few times each

Em                                            Laughin' like a madman, out o' sand
Battered as I am, honey, I can stand          Emptied pistol in my hand
C       G        B     Em                     Can you hear the sirens? Hear 'em wail
Rum cup swirlin' in my hand                   End is nigher than your vein
Em                                            
Batten down the hatch, furl her sail          Did my time
C         G        B        Em                Talking got me down
And she's comin' I hear her wail!             And in her eyes, there was eve
(Emmaj7->Em) C G (B/F#->B/G) Em               And a song that's playing over low
                                              
C      G                                      But secrets come undone
Bid my time                                   I did turn to mutiny...
B7              Em                            
Doldrums got me down                          A                             Em
C          G     B7                           Feels like the sky is fallin' down
And in her tide, treachery                    A                     B         Em
C (high G)                  C (high F#)       Hear the fury and the sound! O, woe!
Now her cauldron's frothing o'er, Lord

Em
And the tears they're fallin' down
C        B           A7 (high G)
As I did turn in mutiny...