Trombone Duet Trombone - Level 4 - Digital Download SKU: A0.1139083 Composed by Michael Giacchino. Arranged by Fabio Britto. Children,Film/TV,Jazz,Wedding. Score. 4 pages. Fabio Britto #739366. Published by Fabio Britto (A0.1139083). Arrangement of the song The Incredibles Main Theme (from Pixar) for Trombone Duo.