Instrumental Duet Instrumental Duet,Piano,Trombone - Level 2 - Digital Download SKU: A0.646138 Composed by Amalie, Princess. Arranged by Nick Lacanski. Baroque,Concert. Score and parts. 3 pages. Theupperstaff #1988837. Published by theupperstaff (A0.646138). This march to honor one of Princess Amalie's generals has been nicely arranged for trombone and piano. It fits the instrument nicely and brings new life to this piece.