There’s a tune going through my head right now. Specifically it’s “The Musical Box” by Genesis. This is because the House of Commons annunciator – the green-screened TV monitors dotted throughout the palace which display who’s speaking in the chamber – makes an audible musical noise, rather like the sound of someone strumming a guitar, every time someone new gets up to speak. And it always reminds me of the intro to “The Musical Box” by Genesis (as featured on the classic album, Nursery Cryme).

The same thing happens every time I switch on my Mac: it makes a musical noise which sounds a bit like the intro for Billy Joel’s “River of Dreams”.

My brain is a scary place to be, sometimes.