Instrumental Duet,Piano Instrumental Duet,Piano,Viola,Violin - Level 1 - Digital Download SKU: A0.1253268 By John Newton. By John Newton. Arranged by Ygor Nunes. Christian,Christmas,Wedding. 4 pages. Ygor Nunes #847029. Published by Ygor Nunes (A0.1253268). Here is an easy and beautiful arrengement for a violin and viola duet with piano accompaniment.