Instrumental Duet Euphonium,Instrumental Duet,Trombone,Tuba - Level 3 - Digital Download SKU: A0.783267 Composed by Traditional. Arranged by John Groves. Christmas,Holiday,Traditional. Score and parts. 3 pages. John Groves #6120347. Published by John Groves (A0.783267). Deck The Halls - arranged for Trombone & Tuba Duet.