At least a week before the dance, get in touch with the organizers about sound. You really don't want to show up and be missing something important. A good place to start is listing your musicians, what instruments they play, and what you need for amplifying each instrument. For example, with the Free Raisins I'd list:
Here's more or less what I said:
The web started off as just HTTP. This allowed for an enormous amount of things, but online shopping wasn't one of them. The problem was, sending credit card numbers over HTTP opened them up to theft: anyone between you and the server could keep a copy of your card information. Netscape saw this as an opportunity, if they could make a safe way to do this, using their browser and server. This would be good for them and good for the success of the web as a whole.
It was initially viewed as just a thing for credit cards. For example:
Netscape charges $1,495 for an entry-level server; adding the ability to handle secure credit card transmissions bumps the price up to $5,000
—The rise of Netscape, July 1995
There aren't actually that many weeknight dances, though:
Trying to read more about this, I found an article saying: