Instrumental Duet Instrumental Duet,Tuba - Level 3 - Digital Download SKU: A0.783154 Composed by John Francis Wade. Arranged by John Groves. Christian,Christmas,Praise & Worship,Sacred. Score and parts. 5 pages. John Groves #6073109. Published by John Groves (A0.783154). O Come All, Ye Faithful (Adeste Fideles) - Tuba duet arrangement. Traditional Christmas music.Score and Individual Parts Included.