I don't know what this means, but...

There’s a drum in my head
And I don’t know the beat

There’s a drum in my head
And it doesn’t have feet

There’s a drum in my head
And it has no where to meet

There’s a drum in my head
And it knows no conceit

There’s a drum in my head
And it gives off a lot of heat

There’s a drum in my head
And never keeps anything neat

There’s a drum in my head
And it will never give up its seat