Trombone Duet Trombone - Level 4 - Digital Download SKU: A0.688542 Composed by Mykola Leontovych. Arranged by Fabio Britto. Celtic,Children,Christmas,Contemporary,Holiday,Irish. Score. 4 pages. Minhas Partituras #6623019. Published by Minhas Partituras (A0.688542). Arrangement of the song Carol Of The Bells (Christmas Song) for Trombone Duo (In D Minor).