I agree with all that's been said already but there's another point, I think. Lately, by which I mean in the last 10 years or so, it's been fashionable, with some popular singers, to present songs in a very slow, and I would say, pretentious manner. Here we had "Waltzing Matilda" performed, at a big public event, done so slowly that it took 15 minutes to sing. Granted it's a bit sad, but 15 minutes!!
Doesn't answer the original question exactly. Joy