I´m Shipping up to Boston (Dropkick Murphys)

-6 6 -6 6 -6 -7 7 -7 -6 6 -6 6 -6 6 -6 -7 7 8
-6 6 -6 6 -6 -7 7 -7 -6 6 8 -8 7 -8 7 -7 7 -7 6 -6

And you just keep repeating that melody, at the begining it might be
hard to do at the same speed as the song, but as you practice it gets
easier