I’m not sure whether it speaks to my state of mind or to some particular pop prowess of Taylor Swift, but “Shake It Off” has been in my head fairly continuously this week, in a way that has ended up being more pleasant and catchy — and maybe a little bit inspirational, or at least motivational — than annoying. It helps, I suspect, that I’m not really singing the entire song in my head all the time, but essentially just the horn riff from the verse, over and over again (Yes, not even the drums, which are astonishingly catchy; did people write think pieces about the drums in this song when it came out? They should have). It’s become a musical mantra in my head, a reminder to keep moving, keep active and work through all the deadlines and everything that have to be tackled. I’m just not sure how it ended up in there, is all.