"We don't do a lot of them," she said. "That makes them extra special for us. A treat."
Tillis, best known for songs like "Don't Tell Me What To Do" and "Mi Vida Loca (My Crazy Life)," promised that the show would be a mix of different styles: some of her songs and few other things that might surprise people to hear her sing.
But no opera.
"And I'll leave the Pops [concerts] to my sister with the classical training," she laughed.
Even though the country singer will not be singing selections from Wagner's "Ring Cycle" in their original German, performing with a symphony isn't easy, she said. It's a different kind of show.
"When you're working with a band, they follow you" Tillis said. "When you work with an orchestra, you follow them."
Arrangements are more structured. The musicians read from sheet music. Jumping off the page, she said, isn't really a good idea.
"And if you lose your place, all hell breaks loose."
It's a challenge, but nothing she can't handle, and it adds a little variety to her schedule. Tillis continues to tour, and even has a side project -- an acoustic trio she put together.
"I call them The Exhilarations," she said. "We've got a classic girl-group name and we have a softer sound people seem to like pretty well."
She hopes to record with them soon, but it's been difficult finding time to get into the studio.
"I'm blessed with so much work," she said, "but I've been stockpiling material for years. I've got enough for four different records, but you can't put out four records at once. I guess I'm trying to decide what direction to take."
Reach Bill Lynch at ly...@wvgazette.com or 304-348-5195.