Instrumental Duet Euphonium,Instrumental Duet,Trombone,Tuba - Level 3 - Digital Download SKU: A0.783161 Composed by Charles Wesley, Felix Mendelssohn-Bartholdy. Arranged by John Groves. Christmas,Concert,Praise & Worship,Sacred. Score and parts. 3 pages. John Groves #6075089. Published by John Groves (A0.783161).