Cello Time Christmas Piano Accompaniment Book, by Kathy and David Blackwell. Cello time is a great series for young cellists. Dip into this stockingful of easy Christmas music for cello. Unwrap a traditional carol, dance to the Skater's Waltz and a Christmas Calypso, and pull a cracker full of solos and duets. Here are the piano accompaniments to these Christmas delights.