Re: *dies* What do I do?! ARG!!!!
If there is a gitar player make sure you know E, A, D, G, and B concert. Being a guitar player myself I know that they do not like to deviate from these keys. It's always easier to just use open, 1st , 2nd, 3rd and 4th frets than to play in something like F where you start in sixth fret. But Guitar players being the lazy bunch they are also don't like to set a certain pitch to tune to either, and sometimes they come out of tune half way through a song too. So be ready for anything.