it says Bri+Rog+WWRY-cast rehearsed for more than 11 (!) hours yesterday. Just think how bad it must have sounded in the beginning... :-) Or maybe they plan to conquer the show and play like... two hours? It also says that most other musicians tend to rehearse for about ten minutes usually. And that the show had rarely seen anything that loud before.
You can also see some pictures there.
"I'm a great believer in actually NOT giving people what they want"
Brian May, 11 March 05