Song in my head

I have had a song in my head for a little while.
It doesn't really make itself intrusive; it plays in the background and I really only notice it when I am doing some mundane task or other. At that point I slowly become conscious of what is going on.

At least it isn't an annoying song, at least by my current standards it isn't.

I tried getting it out of my head by playing it and listening to it, maybe that will work for a little while.