Trombone Duet Trombone - Level 4 - Digital Download SKU: A0.1126256 By Donny Hathaway. By Donny Hathaway and Nadine McKinnor. Arranged by John Groves. Christmas,Funk,Hip-Hop,Holiday,Pop,R & B. Score. 3 pages. John Groves #726958. Published by John Groves (A0.1126256). This Christmas - arranged for Trombone Duet.