Instrumental Duet Bassoon,Guitar,Instrumental Duet - Level 4 - Digital Download SKU: A0.578155 Composed by Franz Schubert. Arranged by David Warin Solomons. Classical,Romantic Period. Score and parts. 9 pages. David Warin Solomons #3574371. Published by David Warin Solomons (A0.578155). Instrumental arrangement of Schubert's famous song about the trout.