Seven nation army - bass on harmonica (White Stripes)

Alright this is the bass played on harmonica in G

don't mind the guitar in the verse, the bass is always the same

-6 -6 +7 -6 +6 -5 +5  >riff 

-4 +4 +4 +4 +4 +4 +4 +4 +4 -4 -4 -4 -4 +5 +5 -5   >bridge

-6 -6 +7 -6 +6 -5 +5  
                              >verse
-6 -6 +7 -6 +6 -5 +6 -5 +5 

song is in this order:

riff   x12
bridge x1
verse  x2
bridge x1
riff   x12
bridge x1
verse  x4
bridge x1
riff   x12
bridge x1
verse  x2