Trombone Duet Trombone - Level 3 - Digital Download SKU: A0.815710 By Ariana Grande. By Angelina Barrett, Ariana Grande, Brian Bates, London Holmes, Nija Charles, Phil Scully, Steven Franks, Tommy Brown, and Victoria Monet McCants. Arranged by Nicolas Ernesto Cortes. Pop. Score. 10 pages. Nicolas Ernesto Cortes Castillo #6304493. Published by Nicolas Ernesto Cortes Castillo (A0.815710). Arranged for two trombones, in B-flat Major.