Instrumental Duet,Piano Cello,Instrumental Duet,Piano,Violin - Level 2 - Digital Download SKU: A0.1212956 Composed by William Runyan. Arranged by Tyler Adams. Christian,Praise & Worship,Religious,Sacred,Traditional. 13 pages. Adams Arrangements #810153. Published by Adams Arrangements (A0.1212956). Great Is Thy Faithfulness warmly arranged as a duet for violin and cello with piano accompaniment.