Instrumental Duet Cello,Instrumental Duet,Viola - Level 1 - Digital Download SKU: A0.812509 Composed by James R. Murray. Arranged by Christopher Bell. Christian,Christmas. Score and parts. 3 pages. Silent Home Records #6038227. Published by Silent Home Records (A0.812509). Away In A Manger, a Christmas classic now for viola/cello duet. This is the Mueller version. Viola has melody, cello has harmony. Key of G Major. Violin part is a Level 2, Cello is a level 1. Approximately 1 minute long.