They’re from New Orleans, but they don’t sound at all like Buckwheat Zydeco. Not in the least. Currently wowing audiences in Austin at SXSW, Royal Teeth strikingly stole a bill at Washington, D.C.’s DC9 early last summer that featured two other great up-and-coming bands, Races and Saint Motel. Charismatic and effervescent on stage, you can count on 2013 being the year when they move from opening small venues to headlining mid-sized venues. And, if their luck is better than their home city’s was a few years ago — what, too soon? — perhaps even large venues once their eagerly awaited debut LP drops later this year.