I think it probably does. It’s a pity they only tested it at three classical concerts.
Agreed, and I mean, my common sense intuition says it definitely works with most music. Just ask any runner who runs with music playing in their earbuds, the music affects your running pace and it affects your breathing rhythm. I wouldn’t be at all surprised if it influenced your heartbeat too. When we experience something with rhythm, it’s hard to ignore that rhythm. Perhaps it has something to do with how we’re constantly searching for patterns as a way to interpret and understand the world.