Only a northern song

If you're listening to this song
You may think the chords are going wrong
But they're not, he just wrote it like that

When you're listening late at night
You may think the band are not quite right
But they are, they just play it like that

It doesn't really matter what chords I play
What words I say or time of day it is
As it's only a Northern song

It doesn't really matter what clothes I wear
Or how I fare or if my hair is brown
When it's only a Northern song

If you think the harmony
Is a little dark and out of key
You're correct, there's nobody there
And I told you there's no-one there