I always wake up in the middle of the night to memorize words. They seem to take form that transfers to the stage. Still, I remember years ago, after singing the same songs night after night, the band rebeled, and actually recorded what I was singing, then played the actual lyrics. My, there was quite a difference, so I re-memorized lyrics. Yet, many people, regulars who'd gotten used to "my" versions of the songs complained bitterly that I'd copped out on making the songs my own. Ya just can't win. Funny thing is I have the most trouble remembering my own dang songs.