Psa. If you are blind and trying to play guitar, remember to use your very tip of fingers, having nails extremely short. Think of dancing on your fingertips. This will prevent mistakenly getting nasty calluses on the pads with which you read Braille. I was doing it wrong the first time I tried years ago. Maybe for all I know it's because I'm on my lap not squeezing the neck. My fingers feel tingly but not painful.