Instrumental Duet Instrumental Duet,Piano - Level 2 - Digital Download SKU: A0.780247 Composed by Giuseppe Verdi. Arranged by RKKR. Classical,Concert,Instructional,Opera. Score and parts. 6 pages. RKKR #4854903. Published by RKKR (A0.780247). This is an opera composed  by Verdi. Above all, the Ballet music of Act III is famous and popular.Primo is easy if you play the chromatic scale.Secondo is easier than Primo.