you have lost nothing because you invested nothing. you never HAD the event booked. you had a prospect. you neglected to get details. Yeah, you can try to throw your 'partner' under the bus, but it's obviously the norm to handle inquiries and supposed events that way, so that brings it back to YOU. I didn't say you've never done weddings...I said if you agreed to play from 8-midnight, why does it matter the reason? Same equipment, same library, same guy behind the microphone, same guy behind the camera. I don't know why the reason for the 4 hours of playing music makes it suddenly impossible to do the event...other than there was never any actual agreement to do an event 5to start with.