QUOTE(ianporsche @ Nov 19 2008, 06:54 AM)

Grade 3 exam tomorrow and I'm struggling to play my pieces

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Last night when I was practising my wife suggested I change one of my pieces- not a great way to boost my confidence.
Good Luck tomorrow. From what I can gather what is happening to you is perfectly normal, looking at similar posts. I wouldn't recommend changing your pieces at this last stage.
I recently went on a piano course and was advised before performing, to take a deep breath and relax and tell yourself that you are confident and if you look confident the audience will have confidence in you, thus you then play confidently. Not quite the same, but then the examiner is an audience.
This does work, as when we had to perform in a concert, when it was my turn I wanted to run away, but instead I stood up and walked across confidently and sat at the piano. I played well and it was my first concert performance in my life.
So just try to relax, play your pieces very slowly and in seperate hands, start from different parts of the piece, that way you will be secure. This is also advice I obtained on the course.
I will have to practise what I preach in Spring when I will take my Grade 4, my first practical exam.
ET