Instrumental Duet,Piano Instrumental Duet,Piano,Trombone - Level 2 - Digital Download SKU: A0.620030 Composed by William Harold Neidlinger. Arranged by Stephen DeCesare. Christian,Christmas,Praise & Worship,Sacred. Score and parts. 10 pages. Exultet Music #3105995. Published by Exultet Music (A0.620030). The popular Christmas hymn has been freshly arranged as a duet for Trombone with Piano accompaniment.  Accessible and appropriate for any church or concert setting.