We all have songs we like, and most of us have songs we consider classics — no matter what’s going on around us, if we hear it, we turn up the volume and just stop and listen.

But, why is that? What makes a piece of music great?

Rob Kapilow tries to answer those questions. He’s a composer, conductor, author and commentator, and host of the series “What Makes it Great.”

Kapilow is in town this week, and came by our studios with keyboard in tow.