Flute Duet Flute - Level 4 - Digital Download SKU: A0.1227024 By Emmanuel Pahud. By Franz Schubert. Arranged by Glenn Martin. 19th Century,Classical,Contest,Festival,Instructional,Romantic Period. Score. 5 pages. Cornelius edition #823031. Published by Cornelius edition (A0.1227024). Serenade (Ständchen) No. 4 taken from Schwanengesang (Swan Song), D 957a collection of fourteen songs written by Franz Schubert at the end of his life and published posthumously.This edition: Flute duet.