Looking for something to do this weekend that doesn’t require you to wear a costume? See a ghost story within a ballet masterpiece at historic Music Hall Friday and Saturday. With its 1841 premiere at the Paris Opéra Ballet, Giselle is about as classical as classical ballet gets, but don’t let that “scare” you. Ghosts in a graveyard play a role in this story, lending some spookiness to befit the Halloween weekend. But Cincinnati Ballet’s production is more than hauntingly beautiful.Giselle has an integrity that’s been passed through the generations,” says the Ballet’s Artistic Director Victoria Morgan. “There’s something really clean and clear about the expression, the symmetry and the harmony of the real, classical ballet technique.” Choreographed by the Ballet’s Associate Artistic Director Devon Carney (after Marius Petipa’s 1884 revival), the full-length work demands a strong corps de ballet, according to Morgan. “Giselle is a major test for a ballet company: Do you have that caliber of corps? It’s a big challenge.” Principal Dancer Janessa Touchet will dance the title role opening night, partnering with guest Boston Ballet Principal Pavel Gurevich. Don’t miss this mysterious, magical tale, set to Adolphe Adam’s soaring score played by Cincinnati Symphony Orchestra. Who knows, you might even glimpse a real ghost at Music Hall; local lore claims it’s haunted.