A friend of mine and I are developing a master class and would like to approach a music store about having us in for an evening. I know the question they are going to ask is..."What's In It For Me (the store)?"...I'm having a hard time answering this question since we don't have any product endorsements! Even though we should bring in some people to the store there is no way to say we'll bring 40 people in for sure. I'd love to hear any advice!