Instrumental Duet Flute,Guitar,Instrumental Duet - Level 3 - Digital Download SKU: A0.1036604 Composed by Jonathan E. Spilman. Arranged by Laura Comyns. Celtic,Folk,Irish. Score and parts. 3 pages. Laura Comyns #641606. Published by Laura Comyns (A0.1036604). This is an intermediate arrangement of Flow Gently, Sweet Afton for flute and finger style guitar. Key of E, 57 measures. Guitar performance by Carolina Diez.