One of those moments?

... When you are glad you were there.
Beamish Museum again.
He was playing some little Northumbrian pipes, he works there, dressed in 1825. And as I came into the room, this lady visitor was dancing, beautifully. Really light of foot and enjoying his playing. She was holding her shoes in her hand and was lost in the pipes sound.
I asked her if she had known the dance long?
"Oh I always have to dance" she replied, "when I hear music like that" and she was gone, like a brief surreal memory of a dream.