Rehearse or perform duets anytime, anywhere! This great series comes with a CD that features separate tracks for the Primo and Secondo parts, and is enhanced so Mac and PC users can adjust the tempo without changing pitch! Titles include: Blue Christmas; The Chipmunk Song; The Christmas Song; Christmas Time Is Here; I'll Be Home for Christmas; It's Beginning to Look like Christmas; Mistletoe and Holly; Rockin' Around the Christmas Tree; Rudolph the Red-Nosed Reindeer and Silver Bells.