"The band warms up."
"The audience warms up."
"Are you ready for the blues?"
(These are the three introductory sentences of Buddy Guy's recording The Real Deal.)
Featuring Bernd and his electronic slides
"Are you all set?"
"We are gathered here today..."
Computer science for the specialists
The audience is attentive...
...and even spell bound.
"...which is my last slide."
The audience is overwhelmed.
Question time
Pyrotechnics at the blackboard
"What was the question again?"
"QED."