The Phillip Keveren Series-The Christmas Variations: Phillip Keveren Series features 8 classic carol settings expertly arranged for Piano Duet by Phillip Keveren.This collection includes the festive favourites Ding Dong! Merrily On High! I Saw Three Ships Joy To The World We Wish You A Merry Christmas and more.See the 'closer look' feature on the Hal Leonard website to preview sample pages audio excerpts and/or video clips.