I get this, sometimes much stronger than others, even for the same music. I donate platelets at the Red Cross which takes a couple hours, so they provide DVD players and a selection of movies to choose from while you are hooked up to the apheresis machine.

I found they had a DVD of Yes' Symphonic tour from around 2001, and I felt like a real idiot because my eyes were seriously watering up during a lot of that concert. It's not crying, although it may look the same.