ska chords: G C
E|-3-----|
B|-3---5-|
G|-4---5-|
D|-5---5-|
The ska part is the same throughout, and it is:
G G G G | C C C C |
1 + 2 + 3 + 4 + |1 + 2 + 3 + 4 + |
And every power chords section is the following progression, changed
only in speed:
G G C D