Thanks for the Fred Quite. 
I'm just finished rushing around cooking post-exam. Thanks for all the good lucks. That really helped.
The exam went fine I think. I did some bits really nicely. Moon River came out beautifully. Then some bits I cocked up hilariously, including one scale that took five attempts to get right, and one where the clarinet turned unexpectedly into a rock and did nothing.
The singing bit went weirdly well and I produced what sounded to me like a beautiful soprano singing voice that I didn't know I had, and the sight reading went well, which has never happened before.
I totally fried in Daisy Bell, but scrambled to get back on the horse before the end. My third piece I played slowly, because it is hard, and nothing went too badly wrong.
Anyway, there it was. I get to find out how I did in a week and a bit I think, but my piano man said he thought I did okay for a pass. Fingers crossed. Very exciting stuff.
Makes me realise that I'm quite good at science, as I scramble around on the bottom rung of music 35 years after all the usual grade 1-ers.
Ds played his self-written piano composition perfectly and has a byootiful cerfiticate. (he doesn't get it from me)