B-Flat Trumpet,Instrumental Duet,Trombone - Level 2 - Digital Download SKU: A0.1306888 Composed by Henry Wadsworth Longfellow and Johnny Marks. Arranged by P. R. Frederick. Christmas,Holiday. 1 pages. P. R. Frederick #896224. Published by P. R. Frederick (A0.1306888). Here's the Christmas classic arranged for trumpet and trombone duet.Check out all of my arrangements here