Ok, as there are loads of versions of this theme throughout the series, so here are the 
lyrics for the first 5 episodes of series one of the best comedy ever made. Enjoy.

     G                              A
The sound of hoof beats 'cross the glade.
      Am                         Dsus4 D
Good folk, lock up your son and  daughter.
    G                       A
Beware the deadly flashing blade,
   Am                      Dsus4 D
Unless you want to end up  shorter.

        G             Dm         C   G  Am  A    Dsus4 D
Black Adder, Black Adder. He rides a pitch black  steed.
       G            Em         Am G  C   A  Dsus4 D
Black Adder, Black Adder. He's very bad  indeed.


  G                           A
Black. His gloves of finest mole.
  Am                        Dsus4 D
Black. His codpiece made of   metal.
     G                       A
His horse is blacker than a hole.
     Am                      Dsus4 D
His pot is blacker than his  kettle.

         G          Dm         C     G  Am  A   Dsus4 D  
Black Adder, Black Adder. With many an cunning plan.
        G           Em        Am  G  C  D   G
Black Adder, Black Adder. You horrid little man!