Enter DOBBY and WINKY. DOBBY has a guitar; WINKY has a very worried look on her face.

DOBBY
Come gather round, house-elves, and hear Dobby's song
For the wizarding world has oppressed us too long
We work for no money, it's sad and it's wrong
The injustice is truly outragin'
In filth and in rags isn't where we belong
Oh our lives, they need a-changin'

WINKY
Oh Dobby, please stop, a bad elf you have been
You is shaming us all, you's not fit to be seen
You's wasting your time trying to fight the machine
There's no time for ranting and ragin'
When there's carpets to sweep and there's bathrooms to clean
And the sheets, they need a-changin'

DOBBY
There's no need to live with our heads on the blocks
Even Hogwarts need not be a school of hard knocks
There's plenty of galleons in Dumbledore's box
And he's willing to pay us for slavin'
So cast off your shackles and pull up your socks
For our lives, they need a-changin'

WINKY
Oh Dobby, you's going quite mad, I'm afraid
Firsts you loses your job, now you wants to be paid
Back home with the Malfoys I wish you had stayed
This freedom is surely derangin'
I's wanting no part of this mess you have made
And my mind is not a-changin'

DOBBY
I dream that all house-elves will one day be freed
To live as they choose and be paid what they need
So sign up with SPEW and pass on their creed
Their policy's very wide-rangin'
Let justice prevail, we'll be happy indeed
And our lives will be a-changin'!