Instrumental Duet Instrumental Duet,Trumpet,Tuba - Level 3 - Digital Download SKU: A0.783269 Composed by Traditional. Arranged by John Groves. Christmas,Holiday,Traditional. Score and parts. 3 pages. John Groves #6120349. Published by John Groves (A0.783269). Deck The Halls - arranged for Bb Trumpet & Tuba Duet.