In reply to Tom Valentine:
> Does everyone stand up at a certain point or is it just a Yorkshire thing?
No, it's absolutely standard, as you'll discover if you ever see it performed at the Albert Hall.
I absolutely love that tradition: it's huge sense of occasion. Really thrilling. I remember seeing it performed a few years ago at the big church in Wirksworth and, incredibly, only about 4 of us stood up at the intro, which made me feel a bit of a twit - stunned that most there were unaware of the tradition. But we stood our ground and then a few other daring people stood up, getting the sense of some important tradition. I think by about halfway through it, most of the congregation had stood up, but I was astonished that in this old, historical town, many of its inhabitants seemed to be completely unaware of the tradition (started by George III).
When you see it somewhere big, with a huge audience, like the Albert Hall, there's a kind of thrilling whooshing sound as everybody stands up.