Ask HN: What was it like to be at a Steve Jobs keynote?

First hand answers or links to others' anecdotes are fine. I want an idea of how the experience was shaped for those in the audience. Were there press packets or handouts at the door? What was in them, what type of printing did they have? Was there media on before the presentation started? Music? Video? What did it smell like? What are the hallmarks of a visionary unveiling?