B-Flat Clarinet,Flute,Instrumental Duet - Level 3 - Digital Download SKU: A0.1209201 Composed by Darian Thompkins. Classical,Contest,Easter,Festival,Instructional,Standards. 2 pages. Darian Thompkins #807312. Published by Darian Thompkins (A0.1209201). Enduring Hope is a duet for Intermediate- Advanced Flute and Clarinet players. This piece has a simple melody that is easy on ears of the listener and gives the young musician an opportunity to practice articulation and dynamics. Enduring hope is wonderful for small crowds , recitals/concerts and solo & ensemble events. Enduring hope is written in F major to aid in the process of learning this scale.