Trombone Ensemble Bass Trombone - Level 5 - Digital Download SKU: A0.1349543 Composed by Michael Arnold Kamen. Arranged by R. Nhomi. Film/TV. 22 pages. R. Nhomi #934299. Published by R. Nhomi (A0.1349543). Trombone Ensemble arrangement of Robin Hood: Prince of Thieves, Main Theme by Michael Arnold Kamen. Arranged for Trombone Ensemble (or Low Brass Ensemble), the opening credits of the 1991 Mothon Picture of the same name. For advanced Trombone Ensemble.