Mason will offer her annual holiday concert Dec. 22 at New York’s Symphony Space. Entitled Karen Mason & Friends Holiday Concert , the concerts will be presented at 3 and 8 PM. Mason will then play the Peoria Center for the Performing Arts in Sun City, AZ, Jan. 25-27, 2008; and she will take centerstage at the Asolo Theatre in Sarasota, FL, Feb. 24 and 26.