Well I guess I'm kind of lucky. I've been vocationally blind for all of my performing life - I never could see well enough to read music or cheat sheets while performing, but like some others the key success factor for me has been rehearsal with others. The other creed which has worked well for me when something goes wrong is 'Stay loose and NEVER apologise, either before or after a performance'. In my opinion audiences feel cheated if you tell them you just learned this on the way to the gig. It's better to say you've been working on it for some time. If you apologise after an item you are simply alerting the majority of the audience who were blissfully unaware. Regards, John