Instrumental Duet Instrumental Duet,Piano,Viola - Level 1 - Digital Download SKU: A0.1009108 By Train. By Amund Bjorklund, Espen Lind, and Pat Monahan. Arranged by Aderson Ferreira. Film/TV. Score and parts. 2 pages. Aderson Ferreira #6343591. Published by Aderson Ferreira (A0.1009108). A very easy and fun arrangement to play! Ideal for beginners