Good one, Thomas.

And yeah, the book is usually nearby to grab whenever there's a request or desire to do a certain song which isn't locked into the memory.

I've blanked on the next verse or flubbed a line or chord progression more times than I can remember. But it's never been a great tragedy as far as I can recall. It's just part of the performance and you can often make it work for you. Sometimes it can be the thing that really connects you to your audience. Had lots of people come up to me on the break and either commisserate laughingly or offer encouragement or say how much they were enjoying themselves. Anybody who's going to carp on your little blunders is probably unreachable anyway.