As I mentioned before, I'm on the other side in this now, and I've seen a variety of performers, and people can provide a good show, no matter which options they choose--I respectfully disagree with Mauvepink, there are lot of people out there using backing tracks, and who improvise--think about DJs--we've had people do shows with an iPad..not my choice, but it's out there, and it's not going away.