Instruct: Classify an Amazon review into positive or negative sentiment.
Query: I passed up the "Greek" concert DVD

I watched the "Live at the Greek" concert on my PBS channel in December and noticed Josh Groban's voice problems early in the program. That was the televised program and I heard it, so I was certain that it would play out on the DVD and CD. As I can see from the reviews, it was very bad. Perhaps his next studio album will be better. For Groban's sake I hope it is so because people have an unforgiving nature when it comes to poor performances. No singer can afford to disappoint more than once. Since Groban isn't a singer who appeals across the board, I hope he does improve.