Main riff:
Ab - Ab - Bb - B E - E - F# - G

Other riff:
B - A - Ab - E - E - E - E (lots of Es for 'banging and banging' bits)

Other riff 2:
Ab - Ab - E - E

I missed the sun when it didn't come
Took a job and I stayed on
Got so bored in Belgium
Crawling up the walls
In Belgium
You know I'm so bored in Belgique
So bored in Belgique
I needed some release
My head was
Banging and banging and banging and banging on
I couldn't shake the feeling in these flat lands
So I took the train to the Netherlands
When all the other countries were having fun
I got so bored in Belgium