I have been playing piano for over 10 years and have been accompanying professionally for about 4 years now. I currently accompany up to a grade 8 AMEB level.
For students sitting a grade 4 exam or lower I prefer to meet about two week before the exam and have a minimum of 2, half hour rehearsal.
For students sitting a grade 5 exam or higher I prefer as much notice as possible (2 to 4 weeks), and also suggest a minimum of 2 half hour rehearsals, potentially more depending on the student and their pieces.
Especially for students sitting higher graded exams, I believe it is very important that they are comfortable not only performing their part but performing and working with me to ensure the best results.
If you have any queries please feel free to contact me and I'll be happy to assist.