I was at the concert in vienna. It was a really great performance and I enjoyed it very much.
But I have to tell that The tonal sound was not good. All deep sounds became blurred and that has really bad effects to your great music. the bass could not be heard differentiated and so some parts of the great double bass drumming of Mike Mangini. In some songs the piano was blurred too. Only the guitar was in nearly all songs clear.
I hope you will come again to vienna but I would be glad if you get an better sound engineer.