Instrumental Duet,Piano B-Flat Clarinet,Flute,Instrumental Duet,Piano - Level 2 - Digital Download SKU: A0.1212803 Composed by William Runyan. Arranged by Tyler Adams. Christian,Praise & Worship,Religious,Sacred,Traditional. 13 pages. Adams Arrangements #810052. Published by Adams Arrangements (A0.1212803). Great Is Thy Faithfulness warmly arranged as a duet for flute and alto sax with piano accompaniment.