There is no question that the Trachtenburg Family Slideshow Players will go down as one of the most talked- about live acts in years. Spots on Comedy Central, Conan O’Brien and being a member of the Monterey Peninsula Touring family will no doubt generate some heavy buzz for them for the rest of the year, and possibly years to come. And while most leaving their oddball show at the Mad Art Gallery in St. Louis appeared to have fallen madly in love with them, some quite skeptical about how long this could really last.

The Trachtenburgs are indeed a family. Jason, the father is the singer/songwriter of the group and his 9-year-old daughter Rachel backs him up on vocals and drums. Mom, Tina, commands the slide projector, synching up slides bought at an estate sale to her husband’s clever words.

They’ve just finished a tour with They Might Be Giants and were the most talked about band at South by Southwest. And, in most ways, we can see why they are so successful

First off, Rachel is adorable. As expected, she’s no Keith Moon, but she does earn an “A” for effort. She smiles and charms the pants off anyone in the audience as she sings songs like “Mountain Trip to Japan 1959.” And, it’s definitely the first time we’ve heard someone ask for “more of their daddy on the monitor.”

Jason, her father, is clever too. Looking like Rick Moranis, he clearly has a gift for linking unrelated topics together. This is best exemplified on “Eggs,” which connects his favorite food to Watergate and the Vietnam War by way of indie rock delivery.

But, the Trachetenburgs are a novelty act, and it’s unclear as to whether or not they can be anything more. They don’t have many songs, and none of them are drastically different from one another. Sure, they’re fun and creative, but how long can this really go on? The whole thing clearly wouldn’t work without Rachel, who saves the Trachtenburgs from being the latest installment in the world of nerd rock.

We’re rooting for the family to prove us wrong, but the reality of an older Rachel is a tough obstacle to get around.

But there is hope. As Rachel told us, she’s “already playing bass in a bunch of other bands in New York.” Two of them, in fact, as she’s guested with King Missle III and the goofy pop duo Schwervon. So maybe we do have a future Meg White on our hands, after all.

In the end, a fun, arty night was had by all. But how many of these nights can we really take?