Viola Solo - Level 3 - Digital Download SKU: A0.608479 By Train. By Amund Bjorklund, Espen Lind, and Pat Monahan. Arranged by Kevin Busse. Pop,Rock. Individual part. 3 pages. Kevin Busse #4898931. Published by Kevin Busse (A0.608479). This is an exact transcription of Hey, Soul Sister in the original key for Viola.