Instrumental Duet Flute,Instrumental Duet,Trombone - Level 3 - Digital Download SKU: A0.1016820 Composed by Samuel Stephenson. Arranged by Patrick C. Sullivan. Contemporary. Score and parts. 4 pages. Patrick Cooper Sullivan #5801631. Published by Patrick Cooper Sullivan (A0.1016820). This is an arrangement that can be played by any concert pitched treble clef instrument and and concert pitched bass clef instrument. The parts were written for Flute and Bass Trombone.