French Horn Duet Horn - Level 4 - Digital Download SKU: A0.1296426 Composed by Leopold Mozart. Arranged by Ciro Chiapponi. Baroque,Chamber,Classical. Score. 25 pages. Ciro Chiapponi #886641. Published by Ciro Chiapponi (A0.1296426). This is a Piano and Horns reduction, with realized bass, of a beautiful Concerto à 2 corni principali, 2 violini, alto viola obligata e basso by Leopold MozartEnjoy It!!