This Christmas music special features the Blue Engine String Quartet performing with four female vocalists, each from a different musical tradition. The vocalists are jazz/classical artist Jeri Brown, country/jazz artist Cindy Church, pop/Acadian artist Lina Boudreau (singing in French) and Celtic artist Mary Jane Lamond (singing in Gaelic.) The musical premise is one of simplicity and elegance, with the program offering traditional Christmas carols that are religious in nature rather than secular or commercial.