Two rooms sit behind the same green door on Clematis Street. One is a nightclub. The other is the bar you would go to on a Tuesday. Most nights you can have both.

The loud one. A DJ booth facing a floor that fills by midnight, tables raised along the rail, and a bar deep enough that you are never waiting long. Thursday through Saturday, this is the room people mean when they say they were out.
The quiet one, mostly locals. A long bar, stools that stay occupied, and a bartender who will remember what you drank last time. Opens earlier than the room next door and stays a conversation the whole night.

A full buyout gives you the dance floor and the quiet room at once, with one guest list across the door.