One of the times that I saw Zappa was at Veterans Memorial Auditorium in Columbus, Ohio. IMO, the acoustics in Vets Memorial is terrible. I saw several concerts there and the sound was poor at all of them except for Zappa's. In addition to being a great musician, he knew sound and the engineering involved. I have heard that he was very involved in the sound setup at his concerts and would show up early to make sure that everything was perfect. If he could make Vets Memorial sound great, he had to be good.