French Horn Duet Horn - Digital Download SKU: A0.513033 Composed by Ignatius Sancho. Arranged by Paul Kajzar. Classical. Score. 9 pages. Paul Kajzar, Gyllcott Music #123918. Published by Paul Kajzar, Gyllcott Music (A0.513033). An arrangement of selected keyboard pieces by the 18th century composer Ignatius Sancho, for two horns in F. The score format is a double stave displaying both parts and the set includes 2 copies. Difficulty level : Intermediate.