Instrumental Duet Horn,Instrumental Duet,Organ - Level 3 - Digital Download SKU: A0.650433 Composed by Camille Saint-Saens. Arranged by Nick Lacanski. Instructional,Romantic Period,Standards. Score and parts. 26 pages. Theupperstaff #6496517. Published by theupperstaff (A0.650433). The actual date of composition is uncertain and Grove Dictionary of Music states it was titled “Andante.� Originally written for horn and organ.