Master the music: memorizing all those songs
Indeed — how does one memorize 577 songs? Many years ago I came across a book entitled "How to conquer stage fright" written a long time ago (I expect it's out of print.) One of it's main tenets was the idea that you could memorize a piece of music without actually singing or playing it, by way of preliminary visualization. I applied that principal to the organ repertoire I was then studying, with phenomenal results. Of course I felt nervous before the performance (an interna