I just agreed to sub for a drummer in two weeks..sounds like plenty of time but I got to learn 40 songs. I know about 10 of them, heard or fimiliar with about 20 more and the last 10 have never heard before. I know for you pro's this is probably easy, but I have never played with a band all night, with people I never met before. Any advise? Its classic rock for the most part with some indie (the 10 I never heard) stuff thrown in.