My lovely piano teacher hosts musical evenings every quarter during which each of her adult students plays a piece of their own choosing.The longest piece I've played thus far was 3 pages, during which despite some nervousness, I was able to play reasonably well.The current pieces on which I'm working are over 8 pages, and I find my nervousness increasing with every page. I'm anticipating "slips", my mind is wandering and I lose the "music" in the music as it sounds increasingly as if I have to finish the piece before the last train to salvation leaves!Any tips would be appreciated. Thank you, everyone.