If you love authentic New Orleans music _ and, really, who doesn’t? _ then you probably also love the Meters. The original Meters (featuring Art Neville, George Porter, Jr., Joseph (Zigaboo) Modeliste and Leo Nocentelli) don’t play out that often anymore, but when they do it’s always a true occasion. The group only has two shows currently scheduled for the fall. Fortunately, they both happen to be at the Fillmore in San Francisco. These gigs, which are sure to sell out in advance, are scheduled for Nov. 17-18. For more information, contact your local Ticketmaster outlet.