Instrumental Duet,Piano Flute,Instrumental Duet,Piano,Violin - Level 2 - Digital Download SKU: A0.1212877 Composed by William Runyan. Arranged by Tyler Adams. Christian,Praise & Worship,Religious,Sacred,Traditional. 13 pages. Adams Arrangements #810089. Published by Adams Arrangements (A0.1212877). Great Is Thy Faithfulness warmly arranged as a duet for flute and violin with piano accompaniment.