Twenty-Five Tunes for Twenty-Five Days of Christmas (for Two Violas) for Viola,String Duet,Viola 1,Viola 2 (Viola Duo) written by Bach, Handel, Corelli,. The format of this sheet music is Score,Set of Parts and it’s published by Violacentric Publications. Twenty-Five Tunes for Twenty-Five Days of Christmas (for Two Violas) is part of the following sheet music categories: Baroque Period,Christian,Folk,Christmas,Recital.