Instrumental Duet,Piano Instrumental Duet,Piano,Viola,Violin - Level 2 - Digital Download SKU: A0.1239755 By Traditional. By Traditional. Arranged by Bragi Thor Valsson. 19th Century,Praise & Worship,Religious,Sacred,Spiritual. 18 pages. Bragi Thor Valsson #835147. Published by Bragi Thor Valsson (A0.1239755). Arrangements for violin and viola of the following songs:Amazing GraceDown To The River To PrayGo Down MosesNearer My God To TheeNobody Knows The Trouble I've Seen.